The Sany Jib is a robust structural extension assembly attached to the main boom of Sany truck cranes, all‑terrain cranes, and crawler cranes, significantly increasing the working radius and lifting height for specialized hoisting tasks.

This Sany Jib integrates a high‑strength boomfoot assembly, folding boom rack, pulley subassembly, precision‑machined pins, lock pins, and all necessary fasteners into a single, factory‑matched extension system. When you need authentic replacement components, trust Sany Parts to deliver factory-original quality and precise fitment.

The Sany Jib is specifically designed for Sany STC‑series truck cranes, SAC‑series all‑terrain cranes, and large crawler cranes, featuring a lattice or folding box‑section construction that extends the crane’s lifting envelope while maintaining structural integrity and load‑carrying capacity.

What is the Sany Jib?

The Sany Jib is a structural boom extension assembly that attaches to the tip of the main boom on Sany truck cranes, all‑terrain cranes, and crawler cranes.

It significantly increases the crane’s working radius, lifting height, and application versatility for specialized hoisting tasks in construction, infrastructure, and industrial projects.

The Sany Jib assembly comprises 22 precision‑engineered components that function as an integrated structural extension system.

The boom assembly forms the primary load‑carrying element. The boomfoot assembly (10631934) provides the secure attachment interface to the main boom tip.

The folding boom rack allows compact storage and transport. The pulley subassembly (A819700000631) guides hoist ropes through the jib structure, enabling smooth cable movement during lifting operations.

The Sany Jib is manufactured from high‑tensile steel with lattice or folding box‑section construction. The folding design allows the jib to be stowed alongside the main boom during transport, significantly reducing transport height and length.

When deployed, the jib is secured with multiple heavy‑duty pins and lock pins, creating a rigid extension that maintains the crane’s load chart integrity at extended radii and heights.

The Sany Jib is available in fixed and luffing configurations, depending on the crane series. Fixed jibs provide a straight‑line extension for increased height, while luffing jibs can be angled relative to the main boom for greater flexibility.

The Sany Jib is a direct replacement for worn or damaged assemblies on Sany STC‑series truck cranes, SAC‑series all‑terrain cranes, and large crawler cranes.

Product Parameters of Sany Jib

Technical specifications: The Sany Jib is manufactured from fine‑grain high‑tensile steel. The jib assembly incorporates multiple precision‑machined pins, lock pins, and fasteners that maintain structural rigidity and load‑carrying capacity.

All components of the Sany Jib are manufactured under ISO 9001:2025 certification and are 100% traceable to original production batches.

The Sany Jib has been validated on Sany STC and SAC series cranes operating globally, demonstrating a field service life exceeding 10,000 operating hours under heavy‑duty conditions when properly maintained.

Why Choose Our Sany Jib?

Complete 22‑Component OEM Kit — Factory‑Matched Assembly: The Sany Jib includes every structural and hardware component as a single, factory‑matched assembly.

This eliminates the geometric incompatibilities that arise from sourcing individual jib sections or pins from different suppliers.

The precision‑machined lock pins (10602820, 10602826, 10051620) are ground to exact tolerances, ensuring a snug, slop‑free fit that maintains structural rigidity during lifting operations.

High‑Tensile Steel Construction for Extended Lifting Envelope: The Sany Jib is fabricated from high‑tensile steel with a lattice or folding box‑section design that maximizes strength while minimizing weight.

This construction approach allows the crane to achieve extended reach and height without exceeding the structural limits of the boom system.

The folding design enables compact storage and transport, making the crane road‑legal without requiring complete jib removal.

Secure Pin‑Locking System with Redundant Retention: The Sany Jib uses a pin‑locking system with multiple lock pins and a retainer pin (10043523) that secures the folded jib in the transport position.

This system ensures positive locking during both deployed and stowed configurations. The clamp pin (10034875) and connection plate provide additional securement between the jib and the main boom tip, eliminating movement that could cause fatigue cracking.

Fleet‑Proven Reliability and Comprehensive Warranty: The Sany Jib is standard equipment on Sany STC‑series truck cranes, SAC‑series all‑terrain cranes, and large crawler cranes in over 100 countries.

Fleet data shows that genuine Sany jib assemblies deliver an average service life exceeding 10,000 operating hours—three times longer than generic aftermarket assemblies—while eliminating jib structural failures and pin loosening incidents.

The assembly is backed by a 24‑month manufacturer’s warranty covering structural cracks, pin galling, and pulley subassembly failure. Volume pricing, consignment stock, and global technical support are available for large fleets.

What are the Routine Maintenance Considerations for the Sany Jib?

Daily visual inspection before operation: Before each shift, inspect the Sany Jib for visible damage including cracks, deformation, or corrosion on all structural sections.

Check the boomfoot assembly (10631934) for wear or cracking at the attachment interface. Examine all pins and lock pins for signs of backing out or loosening.

Verify that the pulley subassembly (A819700000631) rotates freely without binding or unusual noise. Inspect the folding boom rack for damage that could prevent proper stowing.

Lubrication of pins and pulley bearings — every 250 operating hours: Apply lithium‑based EP2 grease to all jib pivot pins, lock pins, and the pulley subassembly bearings through the provided grease fittings.

Pump until fresh grease emerges from the pin ends—this purges old, contaminated grease and ensures complete lubrication. For the pulley subassembly, inject grease slowly while rotating the pulley by hand to distribute lubricant evenly.

Do not over‑lubricate, as excess grease can drip onto the hoist ropes and reduce friction.

Pin wear inspection and torque check — every 500 operating hours: Inspect all pins (A210501000021) for measurable wear using calipers.

Compare readings to the original diameter specification; replace any pin that shows wear exceeding 0.5 mm.

Check the torque of all structural bolts (A210111000079, A210111000089, A210111000443) to the manufacturer specification of 25‑30 Nm for M10 fasteners and 45‑55 Nm for M12 fasteners.

Mark bolt heads after torquing for quick visual verification. If the jib exhibits side‑to‑side play when deployed, worn pins or elongated pin holes are the likely cause—replace affected components immediately.

Preventative overhaul and NDT inspection — every 4,000 hours or 2 years: For high‑use cranes, Sany recommends a full structural inspection of the Sany Jib every 4,000 operating hours.

Perform magnetic particle or dye penetrant inspection on all weld joints, the boomfoot assembly (10631934), and the folding boom rack (10595326) to detect fatigue cracks not visible to the naked eye.

Replace all lock pins (10602820, 10602826, 10051620) as a set—these pins experience the highest cyclic loading and may develop microcracks that are not detectable by visual inspection.

Inspect the pulley subassembly (A819700000631) for bearing wear and replace the pulley if groove wear exceeds 15% of the original rope diameter.

Keep a detailed maintenance log tracking pin measurements, bolt torque values, and NDT inspection results.

By following this proactive schedule, the Sany Jib can reliably exceed 10,000 operating hours, maximizing equipment uptime and safety.

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The boomfoot assembly (10631934) is the interface that connects the Sany Jib to the main boom tip.

This forging is manufactured from high‑strength alloy steel with precision‑machined pin holes that accept the main attachment pins. The boomfoot assembly transfers the entire jib load—including the weight of the jib itself plus the lifted load—into the main boom structure.

If the boomfoot assembly shows any cracking or deformation, the entire Sany Jib must be removed from service immediately. Field welding repairs to the boomfoot are strictly prohibited, as welding heat can alter the metallurgical properties and reduce the fatigue strength of the component.

The folding boom rack (10595326) allows the Sany Jib to be stowed alongside the main boom during transport.

In the stowed position, the jib is rotated upward and secured by the retainer pin (10043523) and catch plate (10137549). Proper operation of the folding mechanism requires that all pivot points be kept lubricated and that the hydraulic or manual folding system be maintained according to the crane manufacturer’s instructions.

If the folding mechanism binds or fails to lock securely, do not transport the crane with the jib stowed—a jib that dislodges during highway travel can cause a serious traffic accident.

The pulley subassembly (A819700000631) guides the hoist rope as it passes through the Sany Jib.

The pulley is equipped with sealed ball bearings that should be lubricated every 250 operating hours using a low‑temperature grease. The pulley groove must be inspected for wear; if the groove has worn to a depth that reduces the rope contact angle by more than 15 degrees, replace the pulley immediately.

A worn pulley can cause abnormal rope wear, leading to rope failure and load dropping. When replacing a pulley, always replace the shaft and bearings as a matched set.

For Sany cranes operating in extreme cold climates (below -25°C), special considerations apply to the Sany Jib.

High‑tensile steel becomes more brittle at low temperatures; avoid shock loading or sudden jib movements that could cause brittle fracture. Allow the jib to warm to ambient temperature before full load application.

Lubricants thicken in cold conditions—use low‑temperature grease (rated for -40°C) for all pivot pins and the pulley subassembly.

If the folding mechanism is hydraulically operated, use low‑viscosity hydraulic fluid (L‑HV22 or L‑HV32) and cycle the mechanism slowly 3‑4 times before full operation.

The Sany Jib is also available as part of a complete boom system overhaul kit, which includes the main boom, the jib assembly, the telescoping cylinder, and all mounting hardware.

Sany recommends this complete‑kit approach for vehicles with over 10,000 operating hours, as it allows the entire boom system to be renewed in a single service event, eliminating the risk of hidden fatigue cracks in the boom structure that could lead to catastrophic failure.

Contact our parts specialists through the Get Quotation button above for custom kit configurations tailored to your fleet’s specific needs.