{"id":12077,"date":"2026-03-25T02:53:26","date_gmt":"2026-03-25T02:53:26","guid":{"rendered":"https:\/\/pto-gearbox.xyz\/?post_type=product&p=12077"},"modified":"2026-03-25T02:53:28","modified_gmt":"2026-03-25T02:53:28","slug":"feed-mixer-pto-gearbox-replaces-comer-c3a","status":"publish","type":"product","link":"https:\/\/pto-gearbox.xyz\/zh\/product\/feed-mixer-pto-gearbox-replaces-comer-c3a\/","title":{"rendered":"Feed Mixer PTO Gearbox | Replaces Comer C3A"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u8ff0<\/h2>\n

Mowers cut. Tillers dig. Mixers grind. The C3A is a feed mixer PTO gearbox<\/b> built for the slow, relentless torque demands of TMR (total mixed ration) mixing wagons \u2014 the machines that blend silage, hay, grain, and supplements into uniform livestock feed. Unlike mower or cutter gearboxes that spin at 800-1,800 RPM, the C3A operates at PTO speed (540 RPM) in 1:1 mode or reduces to approximately 300 RPM in 1.8:1 mode, delivering the crushing torque needed to turn heavy, wet feed materials through vertical auger screws against high resistance. At 92 kW (125 HP) input capacity, this is one of the most powerful gearboxes in our range \u2014 and every kilowatt goes into torque, not speed.<\/p>\n

\"Feed<\/p>\n

The C3A replaces the Comer Industries C3A with matching 1-3\/4 inch, 20-spline connections on both input and output. The cast iron housing contains the heavy-duty gear set required for the sustained, high-torque loading profile that feed mixing imposes \u2014 typically 2-4 hours of continuous operation per mixing session, twice daily on commercial dairy operations. This \u519c\u4e1a\u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b> is compatible with Aksa, DAF Agro, Falke Maschinenbau, and other mixer wagon brands using the Comer C3A specification.<\/p>\n

\u89c4\u683c<\/h2>\n

\"feed-mixer-pto-gearbox-c3a-dimensions-1\"<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u8303\u56f4<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
\u6a21\u578b<\/td>\nC3A<\/td>\n<\/tr>\n
Max. Input Power<\/td>\n92 kW \/ 125 HP<\/td>\n<\/tr>\n
Max. Input Speed<\/td>\n540 \u8f6c\/\u5206<\/td>\n<\/tr>\n
\u6bd4\u4f8b\u671f\u6743<\/td>\n1:1 and 1.8:1<\/td>\n<\/tr>\n
Input Connection<\/td>\n1-3\/4″ (20 spline)<\/td>\n<\/tr>\n
Output Connection<\/td>\n1-3\/4″ (20 spline)<\/td>\n<\/tr>\n
\u4f4f\u623f<\/td>\n\u94f8\u94c1<\/td>\n<\/tr>\n
\u6cb9<\/td>\nSAE 90<\/td>\n<\/tr>\n
Compatible Brands<\/td>\nAksa, DAF Agro, Falke Maschinenbau, others<\/td>\n<\/tr>\n
Replaces<\/td>\nComer C3A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Understanding the Dual Ratio<\/h2>\n

The C3A offers two internal gear configurations. In 1:1 mode<\/b>, the output matches the 540 RPM PTO input \u2014 used for mixer wagons with lighter feed loads or smaller auger designs that need higher rotational speed. In 1.8:1 reducing mode<\/b>, output drops to approximately 300 RPM while torque increases proportionally \u2014 the configuration for large vertical auger mixers processing heavy, wet silage-based TMR rations where the auger screws encounter maximum resistance. The correct ratio depends on the mixer wagon manufacturer’s specification. Check the nameplate on your existing \u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b><\/a> or consult the mixer wagon manual to confirm which ratio your machine requires.<\/p>\n

The ability to choose between two ratios at the point of purchase \u2014 rather than being forced to buy a single fixed-ratio unit \u2014 simplifies inventory for equipment dealers and cooperatives that service multiple mixer wagon brands. Both configurations share the same housing, mounting dimensions, and shaft specifications, so a dealer stocking just two SKUs (1:1 and 1.8:1) can service the entire C3A-equipped \u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b> replacement market in their region.<\/p>\n

Where This Gearbox Works<\/h2>\n

Dairy Farm TMR Preparation<\/h3>\n

Korean dairy operations serving 50-500+ head use TMR mixer wagons to produce consistent, nutritionally balanced feed rations. The C3A powers the vertical auger screws that blend corn silage, hay, grain concentrates, and mineral supplements into a homogeneous mix. The \u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b> runs at full 92 kW load during the mixing cycle \u2014 typically 15-30 minutes per batch \u2014 making thermal management and bearing durability critical design factors.<\/p>\n

\"feed-mixer-pto-gearbox-c3a-application-combo-1\"<\/p>\n

Beef Cattle Feedlot Operations<\/h3>\n

Large-scale beef operations use mixer wagons for daily ration preparation and distribution. The 1.8:1 reducing ratio is popular in this segment because beef TMR rations tend to be denser (more grain, less moisture) than dairy rations, requiring higher auger torque to achieve proper mixing.<\/p>\n

Operating Environment and Maintenance<\/h2>\n

Feed mixer \u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b> operation differs fundamentally from field implement gearboxes. The loading is sustained and predictable rather than intermittent \u2014 the auger screws turn at constant resistance for 15-30 minutes per mixing cycle, twice or more daily. Total annual operating hours on a commercial dairy may reach 700-1,000 hours, comparable to the most intensive field operations. The 92 kW rating generates significant heat during these sustained cycles, so oil condition monitoring is important. Use SAE 90 as specified \u2014 not 80W-90, which is thinner at operating temperature and may not provide adequate film thickness at the high contact pressures inside this \u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b>.<\/p>\n

\"feed-mixer-pto-gearbox-c3a-product-combo-1\"<\/p>\n

The operating environment is generally less dusty than field work but introduces different contaminants \u2014 feed particles, moisture from wet silage, and corrosive compounds from fermented materials. Keep the housing exterior clean and inspect shaft seals regularly for feed material buildup that could work past the dust lips. Change oil at the manufacturer-recommended interval or every 500 hours, whichever comes first.<\/p>\n

Quality and Certifications<\/h2>\n

Korea Ever-Power manufactures the C3A under ISO 9001:2015-certified quality management. Each \u52a8\u529b\u8f93\u51fa\u8f74\u53d8\u901f\u7bb1<\/b> undergoes individual bench testing for gear noise, torque accuracy, and seal integrity before dispatch. The cast iron housing material meets agricultural implement grade standards. We provide a 12-month warranty covering manufacturing defects, with replacement seals and bearings stocked for immediate shipment from our Korea warehouse. Technical support for cross-referencing, compatibility verification, and ratio selection is available during Korean business hours.<\/p>\n

\"PTO<\/p>\n

Driveshaft and Companion Products<\/h2>\n

Mixer wagon PTO driveshafts must handle the 125 HP continuous torque that the C3A transmits. The 1-3\/4 inch, 20-spline connection on both ends requires the heavy-duty shaft class \u2014 smaller shafts will fail under these loads. Korea Ever-Power manufactures matched PTO shaft assemblies<\/a> rated for the continuous high-torque service that mixer wagons demand, with slip clutch or friction disc overload protection to safeguard the gearbox if the auger encounters a foreign object (wire, rope, tool) in the feed material.<\/p>\n

\u6211\u4eec\u7684 agricultural gearbox catalogue<\/a> includes the full Comer C-series mixer gearbox range (C3A, C7A, C17) plus side drives, planetary reducers, and chain case assemblies used in various mixer wagon configurations.<\/p>\n

Questions and Answers<\/h2>\n
How do I know which ratio my mixer wagon needs?<\/b>
\nCheck the nameplate on your existing gearbox. It will show either “1:1” or “1.8:1” (or “1,8:1” in European notation). If the nameplate is unreadable, contact the mixer wagon manufacturer with your serial number.<\/div>\n
Why does this gearbox use SAE 90 instead of 80W-90?<\/b>
\nThe C3A operates at relatively low speeds (300-540 RPM) under very high sustained torque. SAE 90 provides a thicker oil film at these operating conditions compared to multi-grade 80W-90. Follow the specification \u2014 using thinner oil risks accelerated gear wear.<\/div>\n
Is this PTO gearbox compatible with my mixer brand?<\/b>
\nThe C3A is a direct replacement for any mixer wagon originally equipped with the Comer C3A gearbox. Known compatible brands include Aksa, DAF Agro, and Falke Maschinenbau. Verify shaft dimensions and ratio before ordering.<\/div>\n
Can I use this gearbox for other applications?<\/b>
\nAny application needing 1:1 or 1.8:1 ratio at up to 92 kW with 1-3\/4 inch 20-spline connections. Some operators use the C3A for large-diameter grain auger drives and heavy-duty pump applications.<\/div>\n

Customer Feedback<\/h2>\n
Shin Jae-woo, Dairy Farm (200 head), Chungcheongnam-do<\/b> (spring 2025)<\/span>
\n“We mix TMR twice daily with a 14 cubic metre vertical mixer. Put the C3A (1.8:1) on after the original Comer developed a bearing noise. Direct swap, runs smooth. About 500 mixing cycles so far \u2014 around 350 hours \u2014 no issues. The price difference paid for 3 months of feed supplements.”<\/div>\n
Ryu Eun-bi, Beef Feedlot Manager, Gyeongsangbuk-do<\/b> (autumn 2024)<\/span>
\n“Our mixer processes dense grain-heavy rations. The 1.8:1 ratio gives the auger torque we need. Our 110 HP tractor handles it well. Gearbox oil comes out clean at the 500-hour change intervals.”<\/div>\n
Lim Tae-hwan, Agricultural Equipment Dealer, Gyeonggi-do<\/b> (early 2025)<\/span>
\n“Feed mixer gearboxes are a niche but steady market. The C3A covers most of the Korean dairy and beef mixer fleet. Good quality, competitive pricing, and Ever-Power keeps them in stock.”<\/div>\n

Packing and Delivery<\/h2>\n

\"PTO<\/p>","protected":false},"excerpt":{"rendered":"

The Feed mixer wagon gearbox rated at 92 kW (125 HP) with dual ratio options: 1:1 direct drive and 1.8:1 speed reduction. Dual 1-3\/4 inch 20-spline input and output connections. Cast iron housing. Designed for TMR (total mixed ration) mixing wagons and vertical feed mixers. Replaces Comer C3A. Compatible with Aksa, DAF Agro, and Falke Maschinenbau mixer brands.<\/p>","protected":false},"featured_media":12079,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[11349],"product_tag":[],"class_list":{"0":"post-12077","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pto-gearbox","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/product\/12077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/comments?post=12077"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/media\/12079"}],"wp:attachment":[{"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/media?parent=12077"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/product_brand?post=12077"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/product_cat?post=12077"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pto-gearbox.xyz\/zh\/wp-json\/wp\/v2\/product_tag?post=12077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}