Horizontal Feed Mixer Planetary Gearbox
Compatible Horizontal Mixer Brands:
NDE
Kuhn
Val Metal
Siloking
Faresin
Tatoma
Sgariboldi
Supreme Industries
Penta
Strautmann
Keenan
Why Choose Our Horizontal Feed Mixer Planetary Gearbox? — The Comer D732A is the most widely used European horizontal feed mixer gearbox — a coaxial (inline) planetary reducer delivering ratios of 11.1:1 and 9.31:1 for horizontal auger and reel mixer drives. Our replacement matches the D732A housing bolt pattern, output shaft interface, and PTO input geometry precisely, verified against Comer OEM installation drawings. Ductile iron housing with integral machined oil passages — no external plumbing failure points. One-piece forged alloy steel output shaft. Carburised alloy steel gears with deep case hardening for daily shock load resistance. PTO input at 540 or 1000 RPM — hydraulic motor input also available. CE certified. In stock on common sizes for fast despatch.
Horizontal Feed Mixer Planetary Gearbox — Product Overview
The Horizontal Feed Mixer Planetary Gearbox is the coaxial (inline) configuration of the feed mixer planetary gearbox family — designed for horizontal auger, reel, and paddle TMR mixers where the PTO input shaft and the auger or paddle rotor output shaft are on the same centreline. Unlike the vertical feed mixer gearbox — which requires a right-angle bevel stage to redirect a horizontal PTO input to a vertical auger output — the horizontal feed mixer gearbox transmits power in a straight line. This simpler power path means fewer gear meshes, lower power losses, and a more compact axial length for the same torque output, making the horizontal gearbox the preferred specification where installation geometry allows it.
The leading OEM model in this configuration is the Comer D732A — a coaxial planetary feed mixer gearbox available in two primary ratios: 11.1:1 and 9.31:1. The D732A is original equipment on a wide range of European horizontal TMR mixer brands including Kuhn, Strautmann, Keenan, Tatoma, and Sgariboldi, as well as many South American and Australasian mixer manufacturers. Our Horizontal Feed Mixer Planetary Gearbox provides a confirmed dimensional replacement for the Comer D732A in both standard ratios — housing bolt pattern, output shaft interface, and PTO input shaft profile all verified against Comer OEM installation drawings. It also replaces the Auburn Gear HM10, HM20, and HM30 horizontal mixer drives, and Bondioli & Pavesi horizontal feed mixer gearbox models.
We supply 20+ standard sizes in the Horizontal Feed Mixer Planetary Gearbox range, covering mixer capacities from compact 4 m³ single-auger machines through to the largest 30+ m³ multi-auger commercial systems. PTO input at 540 RPM or 1000 RPM is standard for trailed machines; hydraulic orbit motor and electric motor (IEC flange) inputs are available for stationary and self-propelled configurations. All models carry CE certification and are supplied with a complete quality documentation package including factory acceptance test report, gear measurement records, material certificates, and installation manual.
Horizontal vs. Vertical Feed Mixer Gearbox — When to Choose Each
Both horizontal and vertical feed mixer planetary gearboxes share the same planetary gear set technology and output shaft construction. The choice between them is determined entirely by the spatial layout of the mixer machine:
| Feature | Horizontal Gearbox | Vertical Gearbox |
|---|---|---|
| PTO / Output Axis | Coaxial — 0° (same centreline) | 90° — PTO horizontal, auger vertical |
| Bevel Stage | None — purely planetary stages | Required — spiral bevel first stage |
| Efficiency Advantage | Slightly higher — no bevel mesh losses | Slightly lower — bevel mesh adds ~1.5–2% loss |
| Typical Mixer Type | Horizontal auger, reel, paddle mixers | Vertical single- or twin-auger mixers |
| Primary OEM | Comer D732A / Auburn Gear HM Series | Comer PGA1602 / Auburn Gear VM Series |
| Axial Length | More compact — no bevel housing extension | Longer — bevel housing adds axial length |
Horizontal Feed Mixer Gearbox — OEM Cross-Reference
Our Horizontal Feed Mixer Planetary Gearbox provides confirmed dimensional and performance replacement for the following OEM models:
① Comer Industries — D732A Series (Primary OEM)
The Comer D732A is the most widely specified horizontal feed mixer gearbox in the European and global markets — a coaxial planetary reducer used as original equipment on Kuhn, Strautmann, Keenan, Tatoma, Sgariboldi, and numerous other horizontal TMR mixer brands. Both standard ratios are covered with confirmed OEM drawing verification:
| Comer Model | Ratio | Configuration | PTO Input | Typical Mixer Brands |
|---|---|---|---|---|
| D732A – 11.1:1 | 11.1:1 | Coaxial planetary — inline | 540 RPM | Kuhn, Strautmann, Keenan, Tatoma |
| D732A – 9.31:1 | 9.31:1 | Coaxial planetary — inline | 540 RPM | Sgariboldi, Strautmann, Penta |
| D Series (other ratios) | Custom on request | Coaxial planetary — inline | 540 / 1000 RPM | Various — confirm by part number |
② Auburn Gear — HM Series (North American OEM)
Auburn Gear HM Series horizontal feed mixer drives are the North American counterpart to the Comer D732A — used as original equipment on Roto Mix, NDE, Supreme Industries, and other North American horizontal TMR mixer brands:
| Auburn Gear Model | Ratio Range | Input Options | Typical Mixer Brands |
|---|---|---|---|
| HM10 | 17.79 – 52.35:1 | PTO / SAE A, C, D hydraulic | NDE, Supreme, small Roto Mix |
| HM20 | 20.53 – 45.97:1 | PTO / SAE C, D hydraulic | Roto Mix, Supreme, NDE |
| HM30 | Custom heavy-duty ratios | PTO / SAE C, D hydraulic | Large-capacity Roto Mix |
③ Additional OEM & Mixer Machine Coverage
Our Horizontal Feed Mixer Planetary Gearbox database covers replacement drives for the following additional OEM brands and mixer machines. Submit the existing gearbox part number and mixer model and we confirm the correct replacement within 48 hours:
Horizontal feed mixer planetary gearboxes used on Italian and South American horizontal mixer brands. Confirmed OEM dimensional cross-reference available on request.
Bonfiglioli 300 Series inline (L) configurations used on electric-drive stationary horizontal mixers and self-propelled mixer auger drives. Full dimensional verification available.
Val Metal · Siloking · Faresin · Tatoma · Sgariboldi · Strautmann · Keenan · Marmix · Euromix · Schuler · Harsh · Gehl — confirm by nameplate data.
Free 48-Hour Cross-Reference: Send us the gearbox brand and part number from the nameplate (e.g., Comer D732A 11.1, Auburn Gear HM20), or the mixer machine brand and model. We confirm the correct replacement model and deliver a firm quotation within 48 hours. Submit your nameplate data →
Key Design Features
Six engineering features that define the Horizontal Feed Mixer Planetary Gearbox and determine its service life in daily horizontal TMR mixing operations:
The horizontal feed mixer gearbox uses only planetary reduction stages — no bevel gear input redirection. This means fewer total gear meshes than the vertical gearbox, lower power losses per stage, and a shorter axial housing length for the same output torque. The purely coaxial power path also eliminates the bevel gear contact pattern check requirement, simplifying assembly quality control and reducing production cost.
All oil supply and return passages are machined directly into the ductile iron housing — eliminating the external hoses, fittings, and banjo bolts that are the primary oil-loss failure point on adapted industrial gearboxes in horizontal mixer service. This matches the Auburn Gear HM Series integral oil passage design standard, which defines North American horizontal feed mixer gearbox best practice.
The horizontal auger output shaft must carry the combined radial load of the auger weight in horizontal orientation, the torsional load of mixing torque, and the bending moment from material resistance forces on the auger flight. A one-piece forged 42CrMo alloy steel shaft eliminates the fretting corrosion and fatigue initiation points that develop at fabricated joint interfaces under these combined daily loads across the mixer's working life.
GGG-50 ductile iron housing provides the notch toughness and impact resistance needed for horizontal mixer applications — where direct material impact from silage, stones in silage, and recirculating paddle material is routine. Grey cast iron, commonly used in budget agricultural gearboxes, fractures under these impact conditions. Ductile iron also provides better dimensional stability under the sustained vibration loads of horizontal paddle and reel mixer operation.
All planetary gears are manufactured from 20CrMnTi alloy steel, carburised, and hardened to 58–62 HRC with a case depth greater than standard industrial specification — essential for absorbing the torque spikes generated by foreign material ingestion and auger-to-floor contact that are routine in horizontal mixer operation. The carburising and hardening specification matches the D732A OEM gear metallurgy standard.
The Horizontal Feed Mixer Planetary Gearbox is available with PTO input (6-spline 540 RPM or 21-spline 1000 RPM), SAE A/B/C/D hydraulic orbit motor input, and IEC B5 electric motor input — covering the full range of horizontal mixer drive configurations from trailed PTO machines through to hydraulic-drive self-propelled systems and electric-drive stationary installations. Shear bolt and cam-type torque limiter overload protection are both available.
Horizontal Feed Mixer Planetary Gearbox — Technical Specifications
Standard engineering parameters for the Horizontal Feed Mixer Planetary Gearbox, aligned with Comer D732A, Auburn Gear HM Series, and equivalent OEM specifications.
| Parameter | Specification | Notes |
|---|---|---|
| Configuration | Coaxial inline — 1 or 2 planetary stages | No bevel stage — PTO input and output on same axis |
| Available Sizes | 20+ standard sizes | Covering mixer capacities 4 m³ to 30+ m³ |
| Standard Ratios (D732A) | 11.1:1 and 9.31:1 | Both Comer D732A standard ratios confirmed |
| Ratio Range (Full) | 5:1 – 200:1 across standard sizes | Auburn Gear HM range: 17.79–52.35:1; custom on request |
| PTO Input Speed | 540 RPM standard / 1000 RPM optional | Must not exceed rated input speed — specify when ordering |
| Max Input Speed (Hydraulic) | Up to 5,000 RPM | For SAE hydraulic motor input configurations |
| Transmission Efficiency | >96% per stage | Higher than vertical gearbox — no bevel mesh loss |
| Input Configurations | PTO 6-spline (540) / PTO 21-spline (1000) / SAE A–D hydraulic / IEC B5 electric | Specify input type when ordering |
| Output Shaft Type | Splined / Keyed / Hollow splined — one-piece forged alloy steel | Matches Comer D732A / Auburn Gear HM output interface |
| Output Rotation | Standard (CW) / Reverse (CCW) | Specify for multi-auger or paddle configurations |
| Overload Protection | Shear bolt (standard) / Cam-type torque limiter (optional) | Shear bolt rating specified per model in installation manual |
| Planetary Gear Material | 20CrMnTi / 18CrNiMo7-6 alloy steel | Carburised, 58–62 HRC; profile-ground DIN/ISO Class 6 |
| Housing Material | Ductile Iron GGG-50 | Integral machined oil passages — no external plumbing |
| Output Shaft Construction | One-piece forged 42CrMo alloy steel | No fabricated joints; eliminates fretting fatigue failure |
| Sealing / IP Rating | IP65 standard | Double-lip radial shaft seals; dust and water ingress protection |
| Lubrication | ISO VG 220 mineral or synthetic gear oil | Initial change at 50 hrs; thereafter every 500 hrs or annually |
| Operating Temperature | -25°C to +80°C | Suitable for year-round outdoor agricultural operation |
| Surface Treatment | Epoxy primer + PU topcoat; agricultural green standard | Salt spray >300 hours per ISO 9227; custom colours available |
| Certification | CE (EU Machinery Directive 2006/42/EC) · ISO 9001:2015 | CE Declaration of Conformity included in delivery package |
| Lead Time | 5 working days (stocked) / 15–30 days (non-stock sizes) | Comer D732A 11.1 & 9.31 equivalents in finished-goods stock |
How the Horizontal Feed Mixer Planetary Gearbox Works
Four steps describe the complete power flow from tractor PTO to horizontal auger or paddle rotor output:
PTO Input — 540 RPM, Coaxial
The tractor PTO shaft drives the gearbox input shaft directly — on the same centreline as the output shaft. There is no bevel redirection; the power enters and exits on the same horizontal axis. Input speed must not exceed 540 RPM (standard) or 1000 RPM (for 1000 RPM-rated models). A shear bolt on the PTO input stub provides overload protection rated to prevent planetary gear tooth fracture on auger blockage.
First Planetary Stage — Torque Multiplication
The input shaft drives the first-stage sun gear. Three or more planet gears simultaneously mesh with the sun gear and the fixed ring gear, sharing the total input torque across multiple contact points. This load-sharing arrangement provides the high torque density needed for horizontal mixer auger loads in a housing much more compact than an equivalent spur or helical gear reduction.
Second Planetary Stage (if fitted)
For higher gear ratios — required when input speed (540 RPM or hydraulic motor speed) must be reduced to a low output speed for slow-turning paddle rotors or heavy auger systems — a second planetary stage multiplies torque again and reduces speed further. Both the Comer D732A standard ratios (11.1:1 and 9.31:1) are achievable within one or two planetary stages depending on the ring-to-sun gear tooth count selection.
Coaxial Output — Horizontal Auger Drive
The final planet carrier drives the one-piece forged alloy steel output shaft at the required auger or paddle speed — coaxial with the PTO input, at the same installation centreline as the Comer D732A or Auburn Gear HM it replaces. No modification to the mixer frame or auger coupling is required for a bolt-in replacement installation.
Application Scenarios
The Horizontal Feed Mixer Planetary Gearbox is used wherever a horizontal auger, reel, or paddle TMR mixer requires drive power on the same axis as the mixing rotor. Key applications:
Horizontal Reel Mixer Wagons
Horizontal reel mixers — used widely in North America on Roto Mix, NDE, and Supreme models — have a horizontal reel drum driven directly inline from the PTO shaft. The coaxial horizontal gearbox mounts between the PTO shaft and the reel shaft, providing the necessary speed reduction and torque multiplication without any 90° turn. The Auburn Gear HM Series and equivalent models are the standard specification for these machines.
Horizontal Auger Mixer Wagons
Horizontal auger mixers — common in European markets on Kuhn, Strautmann, and Keenan models — use one or two horizontal augers driven coaxially from the PTO. The Comer D732A in 11.1:1 and 9.31:1 ratios is the standard OEM specification for the majority of European horizontal auger mixer models, and our replacement covers both ratios with confirmed dimensional equivalence.
Stationary Electric-Drive Horizontal Mixers
Large commercial feedlot and dairy stationary TMR systems use horizontal mixers driven by electric motors — the motor is mounted coaxially with the auger shaft, and the gearbox provides speed reduction between motor speed and auger speed. The Horizontal Feed Mixer Planetary Gearbox with IEC B5 motor input flange replaces the original gearbox in these installations with the same output shaft interface and torque rating.
Self-Propelled Horizontal Mixers
Self-propelled horizontal TMR mixers (Siloking, Faresin, Tatoma) use hydraulic motor-driven gearboxes — the vehicle engine powers a hydraulic pump which drives the mixing rotor through a hydraulic orbit motor on the gearbox. The Horizontal Feed Mixer Planetary Gearbox with SAE A/B/C/D hydraulic motor mounting covers these self-propelled configurations with confirmed dimensional replacement for the original drive unit.
Multi-Auger Horizontal TMR Systems
Large-capacity horizontal multi-auger TMR systems — typically found on 30+ m³ commercial dairy operations and feedlots — require multiple gearbox units, one per auger, all running from the same PTO input via a chain or gearbox distribution system. Our 20+ size range covers the full spectrum of multi-auger horizontal drive specifications from a single product family, with consistent output shaft interfaces across sizes for simplified installation and spare parts management.
Truck-Mounted Horizontal Mixer Bodies
Truck-mounted horizontal TMR mixer bodies used in large commercial operations and contract feeding services require horizontal gearboxes driven from the truck's hydraulic power take-off. The Horizontal Feed Mixer Planetary Gearbox with hydraulic orbit motor input and appropriate SAE flange covers these applications, replacing the original gearbox on Sgariboldi, Tatoma, and other truck-mounted horizontal mixer brands.
Horizontal Feed Mixer Gearbox — Frequently Asked Questions
The ten most common questions from farm managers, machinery dealers, and service technicians sourcing horizontal feed mixer gearbox replacements:
Yes. Our Horizontal Feed Mixer Planetary Gearbox D732A equivalent is verified against Comer OEM installation drawings for both standard ratios — 11.1:1 and 9.31:1. Housing bolt pattern, output shaft diameter and spline profile, and PTO input shaft profile are all confirmed before any cross-reference is issued. Provide the Comer D732A part number including the ratio suffix from the nameplate and we return a confirmed dimensional match with a drawing within 48 hours. No modification to the mixer frame or auger coupling is required for a bolt-in installation.
The fundamental difference is the input-to-output axis angle. A horizontal feed mixer gearbox is coaxial — PTO input and auger output are on exactly the same centreline, with no change of direction. It uses only planetary reduction stages. A vertical feed mixer gearbox adds a right-angle bevel gear first stage to redirect the horizontal PTO input 90° to a vertical auger output. The horizontal gearbox is slightly more efficient (no bevel mesh losses), more compact axially, and simpler to manufacture. The vertical gearbox is required when the mixer auger must rotate on a vertical axis — the far more common configuration in trailed TMR mixers.
The quickest identification method is to look at the PTO shaft attachment point and the auger rotation axis on the original machine. If the PTO shaft connects to the gearbox on the same axis as the auger rotates — horizontally, with the PTO pointing toward the tractor from the back of the mixer — you have a horizontal gearbox. If the PTO shaft enters the gearbox from the side or rear of the machine and the auger rotates vertically (pointing upward inside the mixing chamber), you have a vertical gearbox. The gearbox nameplate will also state the brand and model code: Comer D732A indicates horizontal; Comer PGA1602 or PGA2002 indicates vertical.
The two ratios produce different auger output speeds from the same 540 RPM PTO input: 11.1:1 gives approximately 48.6 RPM output; 9.31:1 gives approximately 58 RPM output. The correct ratio depends on the mixer design and the required auger speed for the feed ingredients being mixed. The ratio is determined by the original machine designer and is fixed for a given mixer model — you must replace with the same ratio as the original gearbox. Always confirm the ratio from the nameplate suffix code. If the nameplate is unreadable, we can often identify the correct ratio from the mixer model number and build year.
Yes. Where the housing and input shaft are still serviceable and only the planetary gear set has failed, we supply the planetary sub-assembly as a separate replacement kit — planet gears, planet carrier assembly, sun gear, ring gear, and all rolling bearings. This is particularly cost-effective for the D732A, where the housing and input shaft are robust and typically outlast the planetary gear set. Provide the complete gearbox part number including the ratio suffix and we confirm the correct planetary kit with gear tooth counts matched to your specific ratio variant.
In order of frequency: (1) Input shaft seal failure and oil loss — the most common mode; horizontal installation means the input shaft seal is fully submerged in oil when the gearbox is correctly filled, making any seal degradation immediately evident as an oil leak from the PTO input end; (2) Planetary gear tooth fracture from foreign material ingestion — stones, wire, or hardware entering the horizontal mixing chamber can jam the auger or paddle rotor and generate a shock torque exceeding the shear bolt rating; (3) Output shaft bearing failure — typically from operating the mixer beyond its rated capacity or from asymmetric load application from auger misalignment. Regular oil level checks and shear bolt maintenance are the most effective preventive measures.
Both are horizontal coaxial planetary feed mixer gearboxes with the same fundamental design architecture — ductile iron housing, integral oil passages, and one-piece forged alloy steel output shaft. The primary differences are: (1) Ratio range — the Auburn Gear HM Series covers a wider ratio range (17.79–52.35:1 for HM10; 20.53–45.97:1 for HM20) compared to the D732A's two fixed ratios of 11.1:1 and 9.31:1, reflecting the different output speed requirements of North American versus European horizontal mixer designs; (2) Input flange — Auburn Gear HM Series has SAE A/C/D hydraulic motor mountings as primary input in addition to PTO shaft input, reflecting the higher proportion of hydraulic-drive machines in the North American market. Our replacement covers both OEM platforms from the same manufacturing base.
The standard recommendation for horizontal feed mixer planetary gearboxes — consistent with both Comer D732A and Auburn Gear HM Series maintenance schedules — is an initial oil change at 50 operating hours after installation or after a new planetary kit installation, followed by oil changes every 500 operating hours or once per year, whichever comes first. In dusty environments or where oil contamination is suspected (indicated by darkening or metallic particles in the oil), more frequent changes are recommended. Use ISO VG 220 gear oil unless the nameplate specifies otherwise. For horizontal orientation, confirm the correct oil fill level from the installation manual — the oil fill level in horizontal orientation differs from that in a tilted or vertical mounting position.
Very likely yes. Most horizontal TMR mixer brands worldwide use one of a small number of common gearbox OEM platforms — Comer D732A, Auburn Gear HM Series, or Bondioli horizontal series — regardless of the machine's country of origin or brand name. Even if your mixer brand is not listed, provide the gearbox brand and part number from the nameplate — not the mixer machine brand — and we identify the replacement from our cross-reference database. If the nameplate is unreadable, provide the mixer machine brand, model number, capacity (m³ or cubic feet), and build year and we typically identify the correct gearbox specification from these details.
Yes — both the Comer D732A 11.1:1 and D732A 9.31:1 equivalents are held in finished-goods stock and are typically available for despatch within 5 working days of order confirmation. For dealers and distributors ordering regularly, forward stock allocation can be arranged to guarantee same-week availability through the main feeding season. For urgent breakdown situations — where the mixer is out of service and daily feeding operations are affected — contact us directly for a same-day stock check and priority despatch. We ship worldwide via DHL Express, FedEx International, and sea freight depending on order quantity and destination.
Quality Assurance
- ✓ ISO 9001:2015 Certified Production — all manufacturing processes controlled under our certified QMS from raw material inspection through final assembly and test.
- ✓ CE Declaration of Conformity — all Horizontal Feed Mixer Planetary Gearbox units CE certified under EU Machinery Directive 2006/42/EC; certificate supplied with every unit.
- ✓ 100% Loaded Factory Acceptance Test — every unit run at rated torque and input speed for a minimum of two hours; oil temperature, vibration, noise, and seal integrity recorded; full test report supplied with every unit.
- ✓ Gear Tooth Measurement Records — all planetary gear sets measured on CNC gear measuring machines; profile and lead records supplied with every unit confirming ratio and tooth geometry.
- ✓ OEM Dimensional Cross-Reference Verified — Comer D732A and Auburn Gear HM cross-references verified against OEM installation drawings before confirmation; dimensional drawing provided with every confirmed cross-reference.
- ✓ Material Certificates — EN 10204 3.1 mill certificates for all alloy steel forgings including output shaft and gear blanks; heat treatment batch records maintained for 10 years.
How to Order
Read the Nameplate
Record gearbox brand (Comer, Auburn Gear, etc.) and full part/model number including ratio suffix (e.g., D732A 11.1 or HM20). Note mixer machine brand and model as backup identification.
Submit Cross-Reference
Send nameplate data to our team. We confirm the correct replacement model, ratio match, and available stock within 48 hours — often same-day for D732A equivalents.
Confirm Options
Confirm PTO input speed (540 or 1000 RPM), output rotation direction, overload protection type (shear bolt or torque limiter), and whether complete gearbox or planetary sub-assembly kit is required.
Receive Quotation
Price, lead time, dimensional drawing, and CE documentation reference supplied. For stocked D732A equivalents, same-day invoice and despatch notification typically available.
Tested & Shipped
FAT-tested at rated load, packaged for agricultural supply chain handling. Test report, material certificates, gear measurement records, and CE Declaration included.
Related Products — TMR Mixer Driveline
PTO Shafts for Horizontal Feed Mixer Drives
A replacement horizontal mixer gearbox is only as reliable as the PTO shaft connecting it to the tractor. Our partner site supplies CE-rated PTO shafts purpose-spec'd for horizontal feed mixer duty — correctly rated for the torque class of the D732A or HM equivalent gearbox, with overrunning clutch to prevent back-torque damage and shear bolt protection matched to the gearbox protection rating. One-stop supply of gearbox and complete replacement driveline minimises downtime.
Profile 6, 540 RPM, telescopic — with CE-compliant guard assemblies for agricultural PTO safety regulation compliance in EU and export markets. Correctly rated for D732A torque class.
Freewheel clutches prevent back-torque from the horizontal reel or auger inertia reaching the tractor PTO on deceleration — a cause of PTO shaft fracture on high-inertia horizontal reel mixer drives.
Cam-type auto-reset torque limiters preset to the D732A or HM equivalent protection rating — for commercial operations where stopping to replace shear bolts after foreign material ingestion is operationally disruptive.
Need a Replacement Horizontal Feed Mixer Gearbox?
Whether you need a replacement for a Comer D732A (11.1:1 or 9.31:1), Auburn Gear HM10/HM20/HM30, Bondioli horizontal series, or any other horizontal TMR mixer gearbox brand — send us the nameplate part number and mixer machine model and we confirm the correct Horizontal Feed Mixer Planetary Gearbox replacement and despatch timeline. For urgent breakdowns, contact us directly for same-week despatch on stocked D732A equivalents.
