Description

S48 PTO Drive Shaft | Extra-Heavy-Duty Agricultural Power Take-Off Shaft with Star profile tube

Product Overview — S48 PTO Shaft

The S48 PTO Drive Shaft is an engineered extra-heavy-duty power take-off shaft designed for reliable torque transmission between tractors and farm implements. Part of our acclaimed S Series (Star Profile), this agricultural PTO shaft features precision-machined cardan joints, a telescopic star profile tube assembly, and integrated safety shielding for dependable field performance.

Industry Applications at a Glance: Agriculture, livestock farming, forestry, horticulture, municipal groundskeeping, biomass processing, and light industrial power transmission. The S48 shaft is widely used with heavy-duty combines, large balers, wood chippers, and high-torque implements.

Core Advantages Summary: The S48 delivers 2390 Nm of operating torque at 540 RPM, constructed with high-strength alloy steel components, precision-ground cross bearings, and a robust star profile tube that ensures smooth, vibration-free power delivery even under demanding field conditions. Every unit ships fully assembled with safety shields, safety chains, and pin kits — ready for immediate installation.

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Technical Specifications — S48 PTO Drive Shaft

Parameter	Specification
Model	S48
Series	S Series (Star Profile)
Cross Kit Size	48.01 (48¡Á127)
Tube Profile	Star profile tube
Power at 540 RPM (Kw)	133 kW
Peak Power at 540 RPM (Pk)	180 HP
Operating Torque at 540 RPM	2390 Nm
Power at 1000 RPM (Kw)	205 kW
Peak Power at 1000 RPM (Pk)	277 HP
Operating Torque at 1000 RPM	1958 Nm
Maximum Permissible Torque (MP)	4200 Nm
Rotation Speed Options	540 RPM / 1000 RPM
Safety Shield	CE-certified plastic shield with inner/outer cones & bearings
Yoke Connection (Tractor Side)	1 3/8" Z6 spline / 1 3/8" Z21 spline (standard)
Yoke Connection (Implement Side)	Customizable — splined, plain bore, or quick-release
Closed Length (Lz)	Customizable per application
Material	High-strength alloy steel (20CrMnTi cross / 45# steel tube)
Surface Treatment	Anti-corrosion paint + zinc-plated cross kit
Certification	CE, ISO 9001:2015

Working Principle — How the S48 PTO Shaft Works

The S48 PTO drive shaft transfers rotational power from a tractor’s power take-off (PTO) output to an attached implement through a pair of precision cardan joints (universal joints) connected by a telescopic star profile tube assembly. When the tractor PTO engages, torque flows from the splined tractor yoke through the first cardan joint, along the telescopic tube, through the second cardan joint, and into the implement yoke.

Structural Components:

Cardan Joints (Universal Joints): Each joint consists of two yokes and a cross kit with needle roller bearings, allowing angular misalignment up to 25° while transmitting full torque.
Telescopic Tube Assembly: The star profile tube (outer tube + inner tube) slides telescopically to accommodate varying distances between tractor and implement during turns and terrain changes.
Safety Shield: A CE-certified plastic guard with inner and outer cones, bearings, and safety chains covers the rotating shaft to protect operators from entanglement hazards.
Yokes: The tractor-side yoke features a standard splined bore (1 3/8" 6-spline or 21-spline), while the implement-side yoke can be customized for splined, keyed, or plain bore connections.
Cross Kit (U-Joint Kit): Precision-ground bearing cups with grease-packed needle rollers and seals ensure smooth rotation and long bearing life.

Core Advantages of the S48 PTO Drive Shaft

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Premium Alloy Steel Construction

Every component — from the 20CrMnTi cross kit to the 45# steel tubes and forged yokes — is manufactured from high-strength alloy steel, heat-treated for maximum hardness and fatigue resistance.

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CE-Certified Safety Shield System

Integrated plastic safety shield with free-spinning inner and outer cones, shield bearings, and dual safety chains meets CE safety directives, protecting operators from rotating shaft hazards.

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Precision-Ground Cross Bearings

Cross kits feature precision-ground bearing cups with high-capacity needle roller bearings, full-complement grease packing, and multi-lip seals for extended service intervals and reduced maintenance.

⚡

High Torque Capacity — 2390 Nm

Engineered to handle 2390 Nm continuous operating torque at 540 RPM and up to 4200 Nm maximum permissible torque, ensuring reliable performance even under peak load conditions.

🌱

Versatile Agricultural Compatibility

Compatible with standard 540 RPM and 1000 RPM PTO outputs, available with 6-spline and 21-spline yoke configurations, and customizable closed lengths to fit virtually any tractor-implement combination.

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Star profile tube for Smooth Power Delivery

Star profile tubes incorporate a multi-point engagement pattern that delivers exceptional torque capacity with minimal backlash. The star geometry provides increased surface contact area, making these shafts ideal for high-torque, heavy-duty applications.

Structure & Material Craftsmanship

The S48 PTO shaft is constructed using a multi-stage precision manufacturing process designed to deliver maximum strength, concentricity, and service life:

Tube Assembly: Cold-drawn 45# carbon steel star profile tubes are precision-machined to tight tolerances, ensuring a smooth telescopic sliding fit with minimal play. The outer and inner tube profiles are matched for consistent engagement across the full stroke length.
Cardan Joint Yokes: Hot-forged from high-strength carbon steel, each yoke is CNC-machined, drilled, and deburred. Bearing bores are ground to H7 tolerance for exact cross kit fitment.
Cross Kit: Made from 20CrMnTi alloy steel, carburized and quenched to HRC 58-64. Needle roller bearings are full-complement design with multi-lip nitrile seals for excellent grease retention.
Safety Shield: Injection-molded high-impact polypropylene shield cones rotate freely on internal bearings, with UV-stabilized material for outdoor durability.
Surface Treatment: All steel components undergo shot blasting and are coated with industrial-grade anti-corrosion paint. Cross kits are zinc-plated for additional corrosion protection.

Typical Application Scenarios for the S48 PTO Shaft

🌾 Crop Cultivation & Tillage

Powers rotary tillers, cultivators, and ploughs. The PTO shaft transmits tractor engine torque to soil-working implements, driving rotating blades or tines that break up and aerate soil for planting.

🌿 Hay & Forage Processing

Drives mower-conditioners, tedders, rakes, round balers, and square balers. The shaft powers cutting discs, conditioning rollers, and baling mechanisms for efficient hay and forage harvesting.

🐄 Livestock Feed Management

Operates feed mixers, feed grinders, TMR mixers, and grain augers. PTO power drives mixing augers and hammer mills to process and distribute animal feed efficiently.

💧 Irrigation & Water Pumping

Powers PTO-driven water pumps, slurry pumps, and irrigation systems. The shaft transfers rotational energy to centrifugal or piston pumps for field irrigation and liquid manure handling.

🌳 Forestry & Land Clearing

Drives wood chippers, stump grinders, mulchers, and flail mowers. The PTO shaft provides high-torque rotational power for cutting and processing wood and brush material.

⛰ Manure & Fertilizer Spreading

Operates manure spreaders, fertilizer broadcasters, and lime spreaders. PTO torque drives spinning discs and beater mechanisms that distribute material evenly across fields.

Selection Guide — How to Choose the Right S48 PTO Shaft

Selecting the correct PTO drive shaft requires matching the shaft’s torque capacity and physical dimensions to your tractor and implement. Confirm the following parameters before ordering:

Required Torque (Nm): Determine the maximum operating torque of your implement. Choose a shaft with an operating torque rating that meets or exceeds this value. The S48 provides 2390 Nm at 540 RPM.
PTO Speed: Verify whether your tractor PTO operates at 540 RPM or 1000 RPM (or both). The S48 is rated for both speeds.
Tractor PTO Spline Profile: Standard options include 1 3/8" 6-spline (540 RPM tractors) and 1 3/8" 21-spline (1000 RPM tractors). Confirm your tractor’s PTO output spline count and diameter.
Implement Input Connection: Measure the implement’s input shaft diameter, spline count, and keyway dimensions. We offer splined yokes, plain bore yokes, and quick-release yokes.
Closed Length (Lz) & Stroke: Measure the minimum distance between the tractor PTO output and the implement input shaft when the implement is in its closest transport position. The shaft’s closed length must be shorter than this distance. Also verify that the maximum extended length accommodates full implement articulation.
Torque Limiter Requirement: For sensitive implements (e.g., mower-conditioners, seed drills), consider adding a shear bolt, friction, or ratchet torque limiter to protect the drivetrain from overload damage.
Operating Environment: Consider dust, moisture, chemical exposure, and temperature. For corrosive environments, request additional surface treatment or stainless steel components.

✉ Contact Our Engineers for Selection Assistance

Brand Compatibility & Replacement Guide

Note: Brand names mentioned below are for cross-reference and selection convenience only. We are not affiliated with, authorized by, or endorsed by any of these brands. All trademarks belong to their respective owners.

The S48 PTO Drive Shaft is engineered as a direct replacement for equivalent PTO shafts used on machinery from the following leading agricultural equipment manufacturers:

John Deere: Compatible with standard John Deere 540/1000 RPM PTO implements including balers, mowers, and tillage tools.
New Holland / CNH: Direct fit replacement for New Holland tractor PTO connections and implement drive shafts.
Massey Ferguson / AGCO: Matches standard AGCO/MF PTO spline and yoke configurations.
Kubota: Compatible with Kubota compact and utility tractor PTO outputs.
Case IH: Replaces Case IH OEM PTO shafts for tillage, hay, and forage equipment.
CLAAS: Fits standard CLAAS implement PTO input requirements.
Fendt: Compatible with Fendt tractor PTO specifications.
Walterscheid / GKN: Dimensionally interchangeable with Walterscheid series drive shafts and cross kits.
Bondioli & Pavesi: Cross-references available for equivalent Bondioli & Pavesi shaft series.

Replacement Parts & Accessories: We supply individual cross kits, yokes, tubes, safety shields, spring pins, push pins, taper pins, and safety chains as spare parts. All components are precision-machined for drop-in replacement.

Quality Certifications & Service Commitment

✅ ISO 9001:2015 Certified

Our entire manufacturing process — from raw material inspection through final assembly — operates under ISO 9001:2015 quality management standards, ensuring consistent product quality.

✅ CE Certified Safety

All PTO shafts include CE-certified safety shields that comply with European Machinery Directive 2006/42/EC for operator protection.

📦 12-Month Warranty

Every S48 PTO shaft is backed by a 12-month warranty covering manufacturing defects in materials and workmanship under normal operating conditions.

🌐 Global Logistics Support

We ship worldwide via sea freight, air freight, and express courier. Our logistics team provides DDP, CIF, FOB, and EXW shipping terms to suit your import requirements.

Frequently Asked Questions (FAQ)

What is the maximum operating angle for the S48 PTO shaft?

The standard cardan joints on the S48 allow a maximum continuous operating angle of approximately 25° per joint. For applications requiring higher articulation angles (up to 80°), we offer wide-angle (CVJ) joint upgrades. Always ensure both joints operate at equal angles (W or Z configuration) for smooth, vibration-free power transfer.

How do I measure the correct closed length for my PTO shaft?

Measure the distance between the tractor PTO output face and the implement input shaft center when the implement is at its closest position to the tractor. The shaft’s closed length (Lz) must be shorter than this distance. Additionally, verify the maximum working distance to ensure the shaft’s extended length is sufficient. Contact our team with these measurements for a precise recommendation.

Can I use the S48 shaft at both 540 and 1000 RPM?

Yes. The S48 is rated for operation at both 540 RPM and 1000 RPM. The torque and power ratings differ at each speed — at 540 RPM, the shaft delivers 2390 Nm / 133 kW, and at 1000 RPM it delivers 1958 Nm / 205 kW. Ensure you select the correct spline yoke for your tractor’s PTO speed (6-spline for 540 RPM, 21-spline for 1000 RPM).

What maintenance does the PTO shaft require?

Regular maintenance includes: (1) Grease all cross kit fittings and the telescopic tube splines every 8-10 hours of operation using EP2 lithium grease. (2) Inspect the safety shield for cracks or damage before each use. (3) Check all spring pins, push pins, and safety chains for wear. (4) Ensure the shaft is not bent or excessively worn. (5) Replace cross kits at the first sign of play or rough rotation.

Do you offer torque limiter options for the S48?

Yes. We offer multiple torque limiter options that can be integrated into the S48 shaft assembly: shear bolt torque limiters (most economical), friction torque limiters (adjustable, auto-reset), ratchet torque limiters (auto-reset with audible warning), overrunning clutches (for implements with high inertia), and automatic torque limiters. Each type provides different levels of drivetrain protection.

What is the MOQ and lead time?

Stock sizes: MOQ from 10 pcs, ships in 3-5 days. Custom orders: MOQ 50-100 pcs, 15-30 day production. We ship worldwide via sea, air, and express.

Engineer’s Field Notes — Global Case Studies

🇦🇺 Australia — Broadacre Grain Farm, New South Wales

Application: Driving a 3-meter rotary tiller for wheat field preparation across 2,000 hectares.

Customer Feedback: “We switched to these PTO shafts two seasons ago after repeated failures with our previous supplier. The cross kit bearings have held up brilliantly through heavy clay soils, and the safety shields actually survived being clipped by a fence post. Very impressed with the build quality at this price point. Already ordered a second batch for our grain augers.”

🇧🇷 Brazil — Sugarcane Plantation, São Paulo State

Application: Powering heavy-duty rotary mulchers for post-harvest sugarcane residue management.

Customer Feedback: “Our operation runs 16 hours a day during the crushing season. These shafts handle the extreme torque loads from our mulchers without the vibration issues we had with other Chinese suppliers. The grease retention on the cross kits is noticeably better — we only re-grease every 20 hours instead of every 8.”

🇩🇪 Germany — Mixed Dairy Farm, Bavaria

Application: TMR feed mixer and manure spreader on a 200-head dairy operation.

Customer Feedback: “German farmers are particular about quality, and these PTO shafts meet our expectations. The CE safety shields are properly certified, the fit and finish is comparable to Walterscheid, and the price is roughly 40% lower. We’ve been ordering replacement cross kits and yokes as spare parts as well — always accurate dimensions.”

🇺🇸 United States — Hay & Cattle Ranch, Texas

Application: Round balers and mower-conditioners across a 5,000-acre ranch.

Customer Feedback: “I run five round balers during hay season and we go through a lot of PTO shafts. These are built tough — the yokes are heavy and well-machined, and the tubes slide smooth even after a full season of dust. I had my mechanic compare the cross kits to the OEM Bondioli ones and he couldn’t tell the difference. Great value.”

🇮🇳 India — Sugarcane & Rice Cooperative, Uttar Pradesh

Application: Powering rotary tillers and chaff cutters for a 500-member farming cooperative.

Customer Feedback: “We ordered 200 PTO shafts for our cooperative members. Quality is consistent, delivery was on time to Mumbai. Farmers report less vibration and longer bearing life vs local shafts. Planning a repeat order with torque limiters.”

🇫🇷 France — Vineyard Equipment Dealer, Bordeaux

Application: Inter-row cultivators and sprayers for vineyards.

Customer Feedback: “As a dealer, we need reliable PTO shafts at competitive prices. These perform excellently in vineyard applications. Our customers appreciate the CE certification. We stock these as our standard aftermarket PTO shaft line.”

Partner With Us — Your Trusted PTO Shaft Manufacturer

As a specialized PTO drive shaft manufacturer with over 15 years of export experience, we supply OEM and aftermarket PTO shafts to dealers, distributors, and end users in 50+ countries. Our engineering team is ready to support your requirements.

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Looking for a complete drivetrain solution? Explore our Agricultural Gearbox catalog to pair with your PTO shaft for optimized power transmission from tractor to implement.

Tags: S48 PTO shaft, agricultural PTO shaft, tractor power take-off shaft, cardan shaft, star profile tube PTO shaft, extra-heavy-duty PTO shaft

S48 PTO Drive Shaft | S Series (Star Profile)