{"id":3534,"date":"2026-03-17T01:09:16","date_gmt":"2026-03-17T01:09:16","guid":{"rendered":"https:\/\/agriculturalgearboxes.top\/?post_type=product&p=3534"},"modified":"2026-03-17T06:26:39","modified_gmt":"2026-03-17T06:26:39","slug":"horizontal-feed-mixer-gearbox-replacement-of-comer-c3a-gearbox-11","status":"publish","type":"product","link":"https:\/\/agriculturalgearboxes.top\/ms\/product\/horizontal-feed-mixer-gearbox-replacement-of-comer-c3a-gearbox-11\/","title":{"rendered":"Kotak Gear Pengadun Suapan Mendatar - Penggantian Kotak Gear Comer C3A 1:1"},"content":{"rendered":"
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Kejuruteraan Drivetrain Pertanian<\/p>\n

Horizontal Feed Mixer Gearbox \u2014 Comer C3A Replacement<\/h1>\n

Precision-engineered drop-in replacement gearbox for mixing wagon systems across UK dairy, beef, equine and sheep farming operations. 1:1 ratio | 92 kW | Cast iron housing | 540 r\/min PTO input.<\/p>\n

\ud83d\udce7 Minta Sebut Harga Sekarang<\/a><\/p>\n<\/div>\n

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\u00a0\"kotakThe horizontal feed mixer gearbox is the mechanical heart of any modern mixing wagon. Built as a direct replacement for the Comer C3A, this unit delivers the same bolt-pattern compatibility and shaft dimensions as the original, meaning no fabrication or custom adapters are needed on UK farm equipment. Whether you run a 200-head Holstein dairy unit in Yorkshire or a mixed beef and sheep enterprise in the Scottish Borders, consistent gearbox performance underpins the nutritional accuracy of every ration you prepare. A worn or failed gearbox leads to uneven blending, increased batch times, and \u2014 ultimately \u2014 compromised animal performance. This replacement unit eliminates that risk with a cast iron housing, precision-hardened gears, and a sealed oil-bath lubrication system that sustains output even during back-to-back winter feeding cycles.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Need a custom ratio or shaft configuration?<\/span>
\nDapatkan Sebut Harga<\/a><\/div>\n

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Spesifikasi Teknikal<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nNilai<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nC3A (Comer Replacement)<\/td>\n<\/tr>\n
Faktor Nisbah<\/td>\n1:1<\/td>\n<\/tr>\n
Kuasa Input Maks.<\/td>\n92 kW<\/td>\n<\/tr>\n
Max. Input Rotation Speed<\/td>\n540 r\/min<\/td>\n<\/tr>\n
Bahan Perumahan<\/td>\nBesi Tuang<\/td>\n<\/tr>\n
Connection 1 Type \/ Diameter<\/td>\nSplined \/ 1-3\/8 in (6 splines)<\/td>\n<\/tr>\n
Connection 2 Type \/ Diameter<\/td>\nSplined \/ 1-3\/4 in (20 splines)<\/td>\n<\/tr>\n
Gred Kelikatan SAE Minyak<\/td>\nSAE 90<\/td>\n<\/tr>\n
Minyak Dibekalkan<\/td>\nNo \u2014 fill before first use<\/td>\n<\/tr>\n
Selang Penukaran Minyak Pertama<\/td>\n50\u201370 jam operasi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* Contact our UK sales team for custom power ratings at alternative PTO speeds.<\/p>\n<\/div>\n<\/div>\n

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C3A Gearbox Dimensional Reference<\/h2>\n

\"kotak<\/p>\n<\/div>\n<\/div>\n

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How the C3A Gearbox Works \u2014 Engineering Behind the Design<\/h2>\n

Power flows from the tractor’s PTO shaft at 540 r\/min into the input connection \u2014 a 6-spline, 1-3\/8 inch interface that matches standard UK agricultural tractors from 40 hp upward. Inside the cast iron housing, a set of precision-cut gears maintains the 1:1 ratio, preserving input torque while routing drive through 90 degrees to the mixer auger shaft \u2014 a 20-spline, 1-3\/4 inch output optimised for high-torque mixing loads up to 92 kW. The sealed oil-bath lubrication system keeps all gear faces and bearing races bathed in SAE 90 gear oil throughout operation, preventing metal-to-metal contact even during extended multi-hour TMR (total mixed ration) batching sessions common on large-scale UK dairy units. The reinforced cast iron housing resists the constant vibration and shock loading inherent in mixing fibrous silage, whole-crop cereal, and chopped straw, without flexing or developing stress fractures over time. Machined input and output shaft bores maintain sub-0.05 mm alignment tolerances, so side-loading on bearings is minimised \u2014 a major factor in gearbox longevity. The entire assembly is a dimensional match to the original Comer C3A, meaning swap-out time on-farm is typically under two hours with standard hand tools.<\/p>\n<\/div>\n<\/div>\n

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Why UK Farm Engineers Specify This Gearbox<\/h2>\n
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\u2699<\/div>\n

Direct-Fit Compatibility<\/h3>\n

Manufactured to Comer C3A dimensional drawings. Bolt pattern, shaft sizes, and housing footprint match exactly \u2014 no machining, no adapters, no delays.<\/p>\n<\/div>\n

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\ud83d\udcaa<\/div>\n

92 kW \/ 540 rpm Rated<\/h3>\n

Handles the heaviest TMR loads \u2014 wet silage, wholecrop, mineral blocks \u2014 without heat stress or torque overload. Matches the power ceiling of most UK 100\u2013130 hp tractor PTO outputs.<\/p>\n<\/div>\n

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\ud83d\udd12<\/div>\n

Sealed Lubrication System<\/h3>\n

Oil-bath design eliminates the daily greasing routine. First change at 50\u201370 hours, then every 500\u2013700 hours \u2014 or annually. Perfectly suited to year-round UK livestock feeding schedules.<\/p>\n<\/div>\n

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Ketahanan Besi Tuang<\/h3>\n

Heavy-wall cast iron housing resists cracking, vibration fatigue, and chemical attack from silage effluent \u2014 conditions that destroy lighter alloy alternatives within a single winter season.<\/p>\n<\/div>\n

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\ud83c\udf3f<\/div>\n

Uniform Ration Quality<\/h3>\n

Consistent 1:1 power transfer keeps auger speed stable across the full mixing cycle \u2014 preventing ingredient stratification that results in variable dry matter intake between cows or batches.<\/p>\n<\/div>\n

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\ud83d\udcc8<\/div>\n

Reduced Total Ownership Cost<\/h3>\n

Longer service intervals, fewer unplanned breakdowns, and a competitively priced unit compared to OEM replacements mean the total cost per year of operation is significantly lower.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Where This Gearbox Performs Across UK Agriculture<\/h2>\n

The horizontal feed mixer gearbox earns its place across the full spectrum of British livestock enterprises. On high-output dairy units in Cheshire or Devon, it sustains the continuous PTO demand of multiple TMR batches per day without temperature rise or power loss. Beef finishing units in the North of England rely on its torque capacity when processing dense, high-energy diets containing rolled barley, distillers’ grains, and baled straw. Sheep and goat operations on hill farms in Wales and Cumbria benefit from its efficiency at part-load \u2014 the gearbox transfers power cleanly even when the wagon is only partially filled. At equine livery yards, dietary precision matters for horse health and temperament; a gearbox that delivers consistent shaft speed ensures chaff, pellets, and supplements are integrated without dead zones in the mixing chamber. Poultry integrators running on-site feed preparation lines also find the 92 kW capacity sufficient for commercial-volume ingredient blending. In every scenario, the value is the same: dependable mechanical transmission that keeps the mixing system moving through the busy UK autumn and winter feeding period.<\/p>\n

\"kotak<\/p>\n<\/div>\n<\/div>\n

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Customer Success \u2014 Real Farms, Real Results<\/h2>\n

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KAJIAN KES<\/span>
\nBradfield Dairy \u2014 North Yorkshire, UK<\/span><\/div>\n

300-Cow Dairy Unit Cuts Gearbox Downtime by 70%<\/h3>\n

Bradfield Dairy had been replacing the gearbox on their Kuhn vertical-converted wagon every 18 months due to housing cracks from silage vibration. After switching to this horizontal feed mixer gearbox C3A replacement in autumn 2022, they completed two full winter feeding seasons \u2014 roughly 420 operating hours \u2014 without any mechanical intervention. Feed manager Rob Halley noted that ration consistency improved noticeably, with less variation in the cow diet leading to a 0.3 L\/cow\/day gain in average milk yield during housed periods. The sealed lubrication system was highlighted as a key factor: previously, staff had to manually grease the gearbox before each morning and afternoon feed, adding 20 minutes to daily labour.<\/p>\n

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“We’ve tried three different replacements over the years. This one is the first that’s genuinely matched the original Comer in terms of fit and durability. We won’t go back.” \u2014 Rob Halley, Feed Manager<\/p>\n<\/div>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Ordered on a Tuesday, fitted by Thursday morning. Perfect match for our Trioliet wagon. The 1-3\/4 inch output shaft slid straight in \u2014 not a millimetre of play. Excellent build quality for the price.”<\/p>\n

\ud83d\udccd James Whitmore \u2014 Beef Producer, Herefordshire, UK<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Our equine yard runs two feed mix cycles a day, 365 days a year. Previous gearboxes lasted maybe 14 months. This one is now into its second year with no sign of trouble. The oil-bath design is the difference.”<\/p>\n

\ud83d\udccd Sarah Pennington \u2014 Livery Yard Owner, Shropshire, UK<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“I was sceptical about ordering a non-OEM part. The technical team emailed me a dimensional drawing before I placed the order, which confirmed the fit. Fitted in less than two hours. Running quietly \u2014 very happy.”<\/p>\n

\ud83d\udccd Callum Fraser \u2014 Sheep & Beef Farmer, Aberdeenshire, Scotland<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Custom Gearbox Engineering \u2014 Built Around Your Application<\/h2>\n

No two mixing wagon installations are identical. Our engineering team works directly with UK dealers, farm machinery workshops, and OEM mixer manufacturers to develop custom horizontal feed mixer gearbox configurations when the standard C3A specification does not fit. Variables we can adjust include shaft rotation direction, gear ratio (single-stage and multi-stage), input speed, output speed, input and output torque ratings, mounting face orientation, and housing dimensions. We also offer modified spline counts and shaft diameters for integration with non-standard PTO equipment or proprietary mixer auger drives. Prototyping, dimensional certification, and batch production are all handled in-house \u2014 no intermediary, no communication delays. UK customers working to a seasonal deadline (pre-winter housing, for example) can discuss priority lead times directly with our sales engineers. We also supply replacement gearboxes compatible with Bondioli & Pavesi, Brevini, Kuhn, Storti, Trioliet, Jaylor, and Schuler mixing wagons in service across England, Scotland, Wales, and Northern Ireland.<\/p>\n

\u2713 Custom Gear Ratios<\/span>
\n\u2713 Modified Shaft Configs<\/span>
\n\u2713 OEM-Style Batch Supply<\/span>
\n\u2713 Multi-Brand Replacement<\/span>
\n\u2713 UK Technical Support<\/span><\/div>\n

Get a Quote \u2014 Custom or Standard<\/a><\/p>\n<\/div>\n<\/div>\n

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Internal Components & Construction Quality<\/h2>\n

Every horizontal feed mixer gearbox leaving the production line contains six interdependent subsystems, each selected and manufactured to the same performance brief. The cast iron housing provides the structural reference for all internal geometry \u2014 gear centre distances, bearing bore positions, and shaft exit angles are all held to tight machining tolerances from this single datum. Inside, the gear set is typically helical-cut for lower noise and more gradual load engagement compared to spur-tooth alternatives. High-load bearings are selected based on the specific radial and axial forces generated by the 92 kW input \u2014 undersized bearings are the most common cause of premature gearbox failure in this class of machine. Input and output shafts are made from alloy steel, induction-hardened at the spline roots to resist the fretting wear that develops when shaft-to-yoke fits loosen under vibration. Labyrinth seals and lip seals at both shaft exits prevent oil loss and block the ingress of silage dust and fine feed particles, which are abrasive enough to score bearing races within weeks if left uncontrolled. The complete assembly is pressure-tested before despatch.<\/p>\n

\"kotak<\/p>\n<\/div>\n<\/div>\n

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Recommended Maintenance Schedule<\/h2>\n
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Task<\/th>\nSelang masa<\/th>\nNota<\/th>\n<\/tr>\n<\/thead>\n
Fill with SAE 90 oil<\/td>\nBefore first use<\/td>\nUnit supplied dry<\/td>\n<\/tr>\n
First oil change<\/td>\n50\u201370 jam operasi<\/td>\nFlush run-in metal particles<\/td>\n<\/tr>\n
Routine oil change<\/td>\n500\u2013700 hrs or annually<\/td>\nMana-mana yang datang dahulu<\/td>\n<\/tr>\n
Check bolts \/ fasteners<\/td>\nMonthly (or after 50 hrs)<\/td>\nTorque to spec<\/td>\n<\/tr>\n
Inspect seals for leaks<\/td>\nMonthly<\/td>\nReplace if weeping<\/td>\n<\/tr>\n
Check shaft alignment<\/td>\nAfter any drive-line work<\/td>\nMisalignment is leading wear cause<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

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Soalan Lazim<\/h2>\n

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Where can I buy a replacement Comer C3A horizontal feed mixer gearbox for my mixing wagon in the UK?<\/strong><\/div>\n
You can purchase a direct-fit C3A replacement gearbox by contacting our UK sales team at sales@agriculturalgearboxes.top<\/a>. We supply to farms, agricultural machinery dealers, and repair workshops across England, Scotland, Wales, and Northern Ireland.<\/div>\n<\/div>\n
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How much does a Comer C3A feed mixer gearbox replacement cost, and can I get a quote for UK delivery?<\/strong><\/div>\n
Pricing depends on specification and order quantity. Email sales@agriculturalgearboxes.top<\/a> with your wagon make, model, and required configuration and we will respond with a competitive quote including UK shipping options.<\/div>\n<\/div>\n
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What is the correct oil type for the horizontal feed mixer gearbox C3A when fitting it to a dairy farm TMR wagon?<\/strong><\/div>\n
Use SAE 90 gear oil. The unit is supplied dry and must be filled before first use. Change the oil after the first 50\u201370 operating hours to remove run-in particles, then every 500\u2013700 hours or at least once a year thereafter.<\/div>\n<\/div>\n
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Will this gearbox fit my Kuhn or Trioliet mixing wagon without any modification to the mounting frame?<\/strong><\/div>\n
The C3A replacement is a direct dimensional match to the original Comer C3A. For wagons originally fitted with a Comer C3A, no modification to the mounting frame or drive shaft should be required. If unsure, send us your wagon’s serial number and we can verify compatibility before you order.<\/div>\n<\/div>\n
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Which UK feed mixer gearbox supplier can provide a custom ratio or modified shaft for a non-standard PTO application?<\/strong><\/div>\n
Our engineering team offers full customisation including modified gear ratios, alternative shaft diameters, different spline counts, and changed mounting orientations. Contact sales@agriculturalgearboxes.top<\/a> with your technical requirements and we will prepare a design proposal.<\/div>\n<\/div>\n
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How long does a replacement feed mixer gearbox typically last on a large UK dairy unit running two TMR batches per day?<\/strong><\/div>\n
With correct oil fill, timely first oil change at 50\u201370 hours, and annual subsequent oil changes, the gearbox is designed for multiple years of service in heavy daily use. The cast iron housing and sealed lubrication system are specifically chosen for the high cycle rates typical of large UK dairy operations.<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Ready to Order or Need a Custom Configuration?<\/h3>\n

Our UK-focused sales team responds quickly to enquiries for standard and custom horizontal feed mixer gearboxes. Whether you need one unit or a batch supply agreement, we can help.<\/p>\n

\ud83d\udce7 Email sales@agriculturalgearboxes.top<\/a><\/p>\n<\/div>\n<\/div>\n

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agriculturalgearboxes.top \u2014 Horizontal Feed Mixer Gearbox specialists supplying UK agriculture | edit by gzl<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Horizontal feed mixer gearbox C3A \u2014 Comer replacement. Cast iron housing, 92kW, 1:1 ratio, 540rpm PTO, 6-spline 1-3\/8″ input, 20-spline 1-3\/4″ output. SAE 90 oil-bath sealed.<\/p>","protected":false},"featured_media":3597,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2001],"product_tag":[],"class_list":{"0":"post-3534","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-agricultural-gearbox","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/product\/3534","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/comments?post=3534"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/media\/3597"}],"wp:attachment":[{"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/media?parent=3534"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/product_brand?post=3534"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/product_cat?post=3534"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/agriculturalgearboxes.top\/ms\/wp-json\/wp\/v2\/product_tag?post=3534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}