PTO Shaft Ratchet Torque Limiter – SAS2 Series (with Splined Shaft)

The SAS2 Series Ratchet Torque Limiter offers medium-duty automatic-reset overload protection via a splined shaft connection. Rated at 800 Nm with dual 1 3/8″ Z6 splines, this limiter uses 16 pawl kits for reliable, repeatable torque limiting in inline PTO assemblies. It is ideal for equipment such as manure spreaders, medium-duty cultivators, and feed mixers where frequent overload events demand a self-resetting protection mechanism. The splined shaft design streamlines integration into existing PTO driveline configurations. Automatic re-engagement, 16-pawl precision, और inline spline compatibility make the SAS2 a practical choice for medium-duty protection.

विवरण

PTO Shaft Ratchet Torque Limiter – SAS2 Series (with Splined Shaft)

Ratchet Torque Limiter for PTO shaft - SAS2 series

The PTO Shaft Ratchet Torque Limiter – SAS2 Series (with Splined Shaft) यह प्रीमियम गुणवत्ता का है ratchet torque limiter यह विशेष रूप से कृषि, औद्योगिक और वानिकी मशीनरी में उपयोग होने वाले पीटीओ (पावर टेक-ऑफ) ड्राइव शाफ्ट सिस्टम के लिए डिज़ाइन किया गया है। इसे इस नाम से भी जाना जाता है। पीटीओ स्लिप क्लच, पीटीओ सुरक्षा क्लच, या ट्रैक्टर पीटीओ ओवरलोड प्रोटेक्टरयह उपकरण आपके महंगे उपकरणों को अचानक लगने वाले टॉर्क ओवरलोड, अवरोधों और परिचालन संबंधी रुकावटों से होने वाले नुकसान से बचाता है।

उपलब्ध मॉडल: SAS2

टॉर्क रेंज: टॉर्कः: 800 Nm

स्प्लाइन विकल्प: 1 3/8″ Z6 (female & male)

ज़रूरी भाग: Circlip, Retaining washer, Dust guard ring, Push pin kit, Hub, Pawl kit (Qty.=16), Housing with yoke, Grease nipple

मूल्य निर्धारण के लिए अनुरोध करें →

तकनीकी विशिष्टताएँ और आयाम

शृंखला Setting Torque (Nm) Spline (female) Spline (male) ए (मिमी) बी (मिमी) सी (मिमी)
SAS2 800 1 3/8″Z6 1 3/8″Z6 161 21 38

* सभी माप मिलीमीटर में हैं। टॉर्क मान न्यूटन-मीटर (Nm) में हैं। स्प्लाइन विनिर्देश ISO/ASAE मानकों के अनुरूप हैं। अनुकूलित कॉन्फ़िगरेशन के लिए हमसे संपर्क करें।

PTO shaft torque limiter Ratchet Torque Limiter technical drawing and assembly

मुख्य विशेषताएं और लाभ

🛠

Universal PTO Compatibility

Standard 1 3/8″ Z6 spline interface fits all major tractor and implement PTO shafts without adapters or modification.

सीलबंद और सुरक्षित डिज़ाइन

धूल से बचाव के लिए सीलबंद ग्रीस-चिकनाई वाले आंतरिक भाग कठोर कृषि वातावरण में संदूषण से सुरक्षा प्रदान करते हैं।

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टॉर्क चयन की विस्तृत श्रृंखला

Available in multiple torque ratings (800 Nm) to match virtually any PTO-driven implement requirement.

सुरक्षा प्रमाणित

यूरोपीय और अंतरराष्ट्रीय मानकों के अनुपालन के लिए सीई मार्किंग के साथ आईएसओ 9001:2015 गुणवत्ता प्रबंधन के तहत निर्मित।

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कॉम्पैक्ट और हल्का

पीटीओ शाफ्ट पर न्यूनतम अतिरिक्त लंबाई और वजन के लिए इसे इस तरह से डिजाइन किया गया है, जिससे ड्राइवलाइन का संतुलन और क्लीयरेंस बना रहता है।

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एकाधिक आउटपुट कॉन्फ़िगरेशन

किसी भी स्थापना आवश्यकता के अनुरूप योक, स्प्लाइन शाफ्ट और फ्लैंज्ड आउटपुट वेरिएंट में उपलब्ध है।

यह कैसे काम करता है — संचालन सिद्धांत

The ratchet torque limiter uses spring-loaded pawl kits that engage with a precision-machined ratchet ring inside the housing. Under normal conditions, the pawls lock into the ratchet profile and transmit full torque. When an overload occurs and torque exceeds the spring preload setting, the pawls are forced out of engagement, and the clutch slips with a characteristic clicking sound. Once the overload condition clears, the pawls automatically re-engage with the ratchet on the next revolution, restoring full torque transmission without any manual intervention. The number of pawls determines the smoothness of the ratcheting action and the overall torque capacity — more pawls provide smoother slipping and higher ratings.

रीसेट विधि: Automatic — self-resetting after overload clears

इसके लिए सबसे उपयुक्त: Equipment experiencing frequent, transient overloads where zero-downtime reset is critical

कृषि अनुप्रयोग के विशिष्ट परिदृश्य

रोटरी मोवर और फ्लेल मोवर

जब ब्लेड छिपे हुए पत्थरों, ठूंठों या धातु के मलबे से टकराते हैं, तो यह मोवर गियरबॉक्स को क्षति से बचाता है। टॉर्क लिमिटर झटके को अवशोषित करता है और इसे ट्रैक्टर के पीटीओ तक पहुंचने से रोकता है।

हे बेलर और राउंड बेलर

स्लग फीडिंग के दौरान बेलर मैकेनिज्म को होने वाले नुकसान, ट्विन रैपिंग में खराबी या बाहरी वस्तु के प्रवेश को रोकने के लिए, नुकसानदायक टॉर्क स्तर तक पहुंचने से पहले ड्राइवलाइन को डिस्कनेक्ट कर दिया जाता है।

रोटरी टिलर और कल्टीवेटर

यह टिलर गियरबॉक्स और ट्रैक्टर पीटीओ की सुरक्षा करता है जब टाइन दबी हुई चट्टानों, जड़ों या संकुचित मिट्टी की परतों से टकराते हैं जो अत्यधिक टॉर्क स्पाइक्स उत्पन्न कर सकते हैं।

Manure Spreaders

Protects the beater mechanism and gearbox from overload when encountering frozen clumps, foreign objects, or uneven material distribution in the hopper.

Feed Mixers & TMR Wagons

Safeguards the mixer auger drive from damage caused by twine wrap, frozen feed blocks, or excessive loading that generates torque beyond design limits.

PTO shaft torque limiter in agricultural tractor application

टॉर्क लिमिटर प्रकार की तुलना

विशेषता बॉल डिटेंट घर्षण डिस्क कतरनी पिन/बोल्ट रैचेट (पॉल) स्वचालित (कैम)
टॉर्क रेंज न्यून मध्यम मध्यम ऊँचाई कम-बहुत उच्च उच्च निम्न मध्यम ऊँचाई
गति सीमा 540–1000 आरपीएम 540–1000 आरपीएम 540–1000 आरपीएम 540–1000 आरपीएम 540–1000 आरपीएम
रीसेट विधि स्वचालित स्वचालित (स्लिप) मैनुअल (बोल्ट बदलें) स्वचालित (रैचेट) स्वचालित (कैम)
सर्वश्रेष्ठ आवेदन प्रकाश उपकरण बार-बार मध्यम भार कभी-कभार होने वाले गंभीर ओवरलोड बार-बार क्षणिक ओवरलोड उच्च उपयोग, कोई उपभोग्य वस्तु नहीं
उपभोग वाले हिस्से कोई नहीं घर्षणरोधी परत (दीर्घकालिक) कतरनी बोल्ट कोई नहीं कोई नहीं
टॉर्क परिशुद्धता मध्यम अच्छा (समायोज्य) उत्कृष्ट (बोल्ट-ग्रेड कैलिब्रेटेड) अच्छा बहुत अच्छा (समायोज्य)

स्थापना एवं उपयोग मार्गदर्शिका

स्थापना के चरण

स्टेप 1: Verify that the PTO shaft spline size matches the torque limiter spline specification (1 3/8″ Z6 (female & male)). Clean all spline surfaces thoroughly.

चरण दो: Slide the torque limiter onto the PTO shaft spline, ensuring full engagement. Secure with the provided push pin kit or retaining hardware.

Step 3: Connect the output side (yoke or splined shaft) to the implement input shaft or gearbox. Ensure proper alignment and secure all fasteners to the recommended torque.

Step 4: Apply grease through the grease nipple to lubricate the spline interface and internal components. Use lithium-based EP grease (NLGI #2).

Step 5: Perform a low-speed test run to verify correct engagement and smooth operation before full-power operation.

Safety & Maintenance Tips

⚠ Always disengage the tractor PTO before inspecting or servicing the torque limiter.

⚠ Use only genuine replacement parts specified for your series to maintain the correct torque rating.

⚠ Re-grease spline connections every 8 operating hours or as specified in your equipment manual.

⚠ Inspect for wear, cracks, or damage before each season. Replace worn components immediately.

⚠ Never operate with damaged or missing PTO shaft safety shields.

Selection Guide — Choosing the Right Model

Selecting the correct torque limiter requires confirming the following parameters:

✓ Required Torque Rating (Nm): Match the implement’s maximum operating torque plus a 20–30% safety margin.

✓ PTO Shaft Spline Size: Commonly 1 3/8″ Z6 (6-spline) or 1 3/4″ Z6/Z20. Verify both input and output spline requirements.

✓ PTO Speed: Standard 540 RPM or economy 1000 RPM — confirm your implement’s requirement.

✓ Connection Type: Yoke output for standard shaft tubes, splined shaft for inline assemblies, or flanged output for direct gearbox mounting.

✓ Overload Frequency: Frequent overloads favor auto-reset types (ratchet, friction, automatic). Infrequent but severe overloads suit shear bolt types.

✓ Environmental Conditions: Consider dust, moisture, temperature extremes. Sealed automatic and friction types offer superior protection in harsh environments.

Need help choosing? हमारी इंजीनियरिंग टीम से संपर्क करें for personalized selection assistance.

Quality Certification & Service Commitment

ISO 9001:2015

Certified quality management system ensuring consistent product excellence

CE Marked

Compliant with European safety, health, and environmental protection standards

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12-Month Warranty

Full warranty against manufacturing defects under normal operating conditions

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Global Shipping

Fast worldwide delivery with professional export packaging and documentation

PTO drive shaft torque limiter manufacturing workshop

Frequently Asked Questions (FAQ)

What torque rating do I need for my implement?

The required torque rating depends on your implement’s maximum operating torque. As a general rule, select a torque limiter rated at 1.2 to 1.5 times the implement’s normal peak operating torque. Consult your implement manufacturer’s specifications or contact our engineering team for personalized guidance.

How do I know when the torque limiter has activated?

Depending on the type: shear bolt limiters show a visibly sheared bolt; ratchet limiters produce a distinct clicking sound during slip; friction limiters emit a slight odor and sound during sustained slipping; automatic cam limiters produce a clicking sensation. In all cases, the implement stops receiving power while the PTO shaft continues turning.

Can I adjust the torque setting?

Friction-type and automatic (cam-type) torque limiters allow field adjustment of the torque setting by changing spring preload through bolt tension. Shear bolt types are set by the bolt grade and cannot be adjusted — different torque ratings require different bolt specifications. Ratchet types have a fixed setting determined by the number and spring rate of the pawls.

What maintenance does the torque limiter require?

Regular greasing through the grease nipple (every 8 operating hours), visual inspection for wear or damage before each season, and replacement of worn friction linings (friction types) or keeping spare shear bolts on hand (shear bolt types). Automatic and ratchet types require minimal maintenance beyond lubrication.

Is this torque limiter compatible with my PTO shaft?

This product uses standard 1 3/8″ Z6 (female & male) spline connections, which are compatible with the vast majority of agricultural PTO shafts worldwide. If your equipment uses a different spline configuration, we offer adapters and custom spline options. Contact us with your shaft specifications for confirmation.

What is the difference between 540 RPM and 1000 RPM PTO?

Standard PTO operates at 540 RPM and is used for most agricultural implements. Economy PTO (also called 1000 RPM PTO) is used for lighter implements to reduce engine RPM and fuel consumption. Our torque limiters are rated for both speeds. Select the spline size matching your PTO standard: typically 1 3/8″ Z6 for 540 RPM and 1 3/4″ Z20 for 1000 RPM.

Do you offer OEM and private-label manufacturing?

Yes, we provide full OEM manufacturing services including custom torque ratings, special spline configurations, custom markings, and private-label packaging. Minimum order quantities apply. Contact our sales team at the link below to discuss your requirements.

What Our Customers Say

🇦🇷 Miguel R.Ranch manager, Buenos Aires Province, Argentina

“Outstanding durability in our dusty Pampas conditions. We’ve been using these for two years on grain augers and feed mixers with zero failures. The sealed design keeps the dust out.”

★★★★★

🇺🇸 David H.Equipment dealer, Iowa, United States

“Our customers keep coming back for these. The quality matches or exceeds European OEM brands at a fraction of the cost. We stock the full range for combine, baler, and mower applications.”

★★★★★

🇳🇿 Craig W.Dairy farmer, Waikato, New Zealand

“Using these on our pasture toppers and feed wagons. They’ve saved our PTO shafts from damage multiple times when hitting hidden stumps. Brilliant design — the auto-reset means we don’t lose any milking time.”

★★★★★

🇬🇧 William D.Arable contractor, Yorkshire, United Kingdom

“Top-notch manufacturing quality. These drop straight onto standard UK PTO shafts and the torque ratings are spot-on. I’ve fitted them on cultivators, grain drills, and mowers — all performing perfectly.”

★★★★★

🇦🇺 James M.Grain farmer, NSW, Australia

“We fitted these torque limiters on all our header drives after losing a gearbox last harvest. They’ve triggered twice on hidden rocks and saved us thousands in repairs each time. Absolutely essential equipment for Australian broadacre farming.”

★★★★★

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Complete range of PTO shaft yokes, cross bearings, tubes, shields, and adapters for all standard sizes.

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PTO shaft and agricultural gearbox assembly

Agricultural Gearboxes

Matched gearboxes designed to work seamlessly with our PTO shafts and torque limiters.

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Available PTO Accessories:

• PTO shaft yokes (plain bore, splined, quick-release)

• Safety shields and guard tubes (EN 12965 compliant)

• Spline adapters (1 3/8″ to 1 3/4″ conversion)

• Cross bearing kits and U-joint repair kits

• Telescoping PTO shaft tubes (triangular and lemon profile)

• Push pin kits and retaining hardware

Ready to Protect Your Equipment?

Whether you need a single replacement unit or bulk OEM supply, our team is ready to help you select the perfect torque limiter for your application. We offer competitive B2B pricing, technical consultation, and fast global delivery.

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OEM & distributor partnerships welcome · MOQ as low as 10 units · Custom specifications available