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Agricultural Power Transmission · UK Supplier
PTO Shaft for Jaylor Vertical TMR Feed Mixers — Single Auger, Twin Auger & Total Mix
Engineered for demanding livestock feeding operations, this precision-manufactured PTO shaft is the direct-fit replacement and OEM-spec upgrade for Jaylor Vertical TMR Feed Mixer models — covering Single Auger, Twin Auger, and Total Mix configurations. Whether you operate a dairy unit in Yorkshire, a beef enterprise in Scotland, or a mixed farm across the Midlands, this shaft delivers the torque capacity, vibration resistance, and service life that professional farming demands.
Why the Right PTO Shaft Matters for TMR Feed Mixers
Jaylor Vertical TMR Feed Mixers are among the most respected mixer wagons in the UK and globally, trusted by large-scale dairy and beef producers for consistent ration blending. At the heart of every mixer wagon’s drivetrain sits the PTO shaft — the critical mechanical link between your tractor’s power take-off and the mixer gearbox. A substandard or worn PTO shaft introduces backlash, vibration, and premature joint failure that can bring an entire feeding operation to a halt at the worst possible moment: during morning rounds when hundreds of animals are waiting. Our PTO shaft for Jaylor Vertical TMR Feed Mixers is designed from the outset to handle the variable torque loading, shock inputs, and continuous duty cycles that define mixer wagon work. It is not a universal approximation — it is a purpose-built component that mirrors the original specification in every critical dimension.
Covering the full Jaylor range — Single Auger models suited to smaller operations, Twin Auger configurations for high-throughput feeding, and Total Mix variants deployed on intensive units — this shaft provides farmers and agricultural machinery dealers across England, Scotland, Wales, and Northern Ireland with a reliable, competitively priced solution they can source directly and install with confidence.
Performance Advantages Built Into Every Shaft
Direct-Fit Precision
Manufactured to match Jaylor’s original shaft envelope — spline count, yoke profile, and collapsed length — so installation requires no modification and no adapters. Drop-in replacement minimises downtime during busy feeding seasons.
High-Torque Capacity
Forged yokes and precision-ground cross journals rated for sustained peak torque loads characteristic of auger start-up, frozen or compacted silage ingestion, and variable tractor engine speed — conditions that routinely destroy lower-grade shafts within a single season.
CE-Compliant Safety Guard
Full CE-marked plastic safety guard assembly is included as standard. This meets UK PSSR and machinery directive requirements, protecting operators from entanglement with the rotating shaft — a non-negotiable requirement on commercial farm operations throughout Great Britain.
Wide Angle Joint Option
Available with wide-angle constant velocity (CV) joint at the tractor end, accommodating tight coupling angles on short-wheelbase tractors and three-point linkage offsets. Smooth, vibration-free power delivery extends gearbox bearing life and reduces fatigue on the mixer frame.
Overrun Clutch & Shear Bolt Options
Configurable with overrun clutch (freewheeling) or shear bolt torque limiters to protect your mixer gearbox from shock overloads. Customisable protection ratings mean the shaft can be tuned to your tractor’s power band and the hardest materials your operation regularly processes.
UK Climate Durability
Salt-spray tested surface treatments on yokes and telescoping tubes resist the persistent damp conditions typical of British winters and early springs. Sealed needle bearings in cross journals reduce re-greasing intervals and maintain smooth operation even after extended outdoor storage between feeding seasons.
Technical Specifications
The following table covers standard specification ranges across the Jaylor Single Auger, Twin Auger, and Total Mix model variants. Custom lengths, spline profiles, and clutch configurations are available on request — see the factory customisation section below for details.
| Parameter | Single Auger | Twin Auger | Total Mix |
|---|---|---|---|
| Series / Profile | Series 6 | Series 7 | Series 8 |
| Rated Torque (Nm) | 2,000 | 3,500 | 5,000 |
| Peak Torque (Nm) | 4,000 | 7,000 | 10,000 |
| Max Operating Speed (rpm) | 1,000 | 1,000 | 1,000 |
| Tube Profile | Lemon / Star | Star / Trilobular | Trilobular / Star |
| Tractor-End Spline (Z x module) | 6 x 1-3/8″ 6 spline | 6 x 1-3/8″ 21 spline | 6 x 1-3/4″ 20 spline |
| Overrun / Clutch Type | Shear bolt std. | Friction disc opt. | Friction / CV opt. |
| Collapsed Length (mm) | 600 – 900 | 750 – 1,100 | 850 – 1,300 |
| Surface Treatment | Zinc phosphate | Zinc phosphate | Zinc phosphate + epoxy |
| Safety Guard | CE-marked, full | CE-marked, full | CE-marked, full |
Technical drawing — dimensional reference for Jaylor TMR PTO shaft fitting:
Construction, Materials & Working Principle
Each shaft is built around a telescoping tube assembly — an inner and outer tube in a matched profile (star, lemon, or trilobular cross-section) that allow the working length to change dynamically as the tractor moves relative to the mixer wagon without interrupting torque transmission. The tubes are manufactured from seamless cold-drawn steel with controlled wall thickness tolerances so the sliding fit remains tight enough to prevent backlash but free enough to telescope without seizing under field mud and crop debris ingestion.
Universal joints at each end consist of a forged carbon steel yoke — drop forged to ensure continuous grain flow around the lug bores — and a precision-machined cross journal (spider) with four ground needle roller bearing cups retained by circlips. This arrangement transmits rotation across misalignment angles up to 25° (or up to 80° with an available wide-angle CV joint), accommodating the geometric offsets inherent in tractor-to-wagon coupling. The cross journals are sealed with lip seals at each cup to retain grease under centrifugal force and exclude abrasive dust and silage moisture — the two most common causes of premature bearing failure on agricultural drive shafts used across British farms.
Key Materials
- Yokes: Drop-forged 20CrMnTi alloy steel, carburised & quenched
- Tubes: Seamless cold-drawn S355 structural steel
- Cross journals: 20CrMo case-hardened to 58–62 HRC
- Guard: UV-stabilised polypropylene co-polymer
- Seals: Nitrile rubber lip seals rated to +120°C
Typical Application Scenarios
- Daily TMR mixing on 200–800 cow dairy units
- Beef finishing operations mixing silage with dry ingredients
- Sheep and goat enterprises using smaller Single Auger models
- Agricultural contractors serving multiple farm clients
- Replacement part supply via UK agricultural machinery dealers
Customer Success Stories
Cheshire Dairy Unit — 450-Cow Mixed Herd, North West England
A family-operated dairy near Nantwich running a Jaylor 5325 Twin Auger mixer was experiencing recurring PTO shaft joint failure every eight to ten months. The farm manager contacted us directly after a web search for a Jaylor replacement PTO shaft UK supplier. We supplied a Series 7 shaft with a friction disc overrun clutch, sized to their JD 6155R tractor’s output speed. After fitting in early 2023, the shaft has now completed two full winter feeding seasons without a joint replacement. Total cost saving over their previous supplier relationship: approximately £1,200 in parts and emergency call-out labour avoided.
— Farm Manager, Cheshire Dairy, North West England
“We run three Jaylor Total Mix wagons across two farms in Aberdeenshire and needed a supplier who could quote on a batch order with consistent lead times. These shafts arrived correctly configured, well packaged, and fitted first time. The CE guard quality was notably better than the previous Chinese-sourced parts we’d been using — no cracks after one season.”
Agricultural Contractor, Aberdeenshire, Scotland
“Our dealer based in Lincolnshire stocks these as aftermarket replacements for customer Jaylor machines. Margins are competitive, warranty call-backs have been zero in the first year of stocking, and the technical drawings provided by the supplier made it straightforward to confirm compatibility before ordering. Recommend without hesitation for agricultural parts distributors.”
Parts Manager, Agricultural Machinery Dealer, Lincolnshire
Factory Customisation & OEM Supply Capability
Our manufacturing facility operates under ISO 9001 quality management with dedicated PTO shaft production lines covering CNC-machined cross journals, induction-hardened tube profiles, and forging lines for yoke production. This end-to-end capability means we are not dependent on third-party sub-suppliers for critical components — dimensional control, material certification, and surface treatment are all executed in-house and documented per batch.
For agricultural machinery dealers, OEM equipment manufacturers, and large farming enterprises purchasing in volume, our engineering team can work to your specific drawings or provide reverse-engineering support from a sample shaft. Custom options include non-standard collapsed and extended lengths, unique spline profiles for proprietary gearboxes, special torque limiter settings, laser-engraved part numbers, and custom packaging for dealer retail display. Minimum order quantities for custom production are flexible — contact our sales team to discuss your programme requirements and pricing structure.
Related Products
PTO Shaft for Keenan Feed Mixers
Direct-fit Series 6 and Series 7 shafts for Keenan Mech-Fiber and Classic mixer models.
TMR Mixer Gearboxes
Replacement and upgrade gearboxes for vertical and horizontal TMR mixer wagons, including bevel and helical variants.
Wide-Angle CV Joint Assemblies
Constant velocity joint assemblies for high-angle coupling situations — suitable for loader tractors and compact tractors with limited PTO-to-implement offset clearance.
PTO Shaft Safety Guards
Replacement CE-marked plastic guard kits for Series 4 through Series 8 shafts. Universal cone and chain anchor kits included.
Frequently Asked Questions
Ready to Order or Need a Technical Quote?
Send us your Jaylor model number, tractor specification, and current shaft dimensions. Our UK-serving applications engineering team will confirm compatibility and provide a competitive price within one business day.
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