Sany Harness 1-Jib

The Sany Harness 1-Jib is a complete OEM electrical interconnect assembly that provides reliable power and signal transmission for jib-mounted sensors, limit switches, and safety devices on Sany heavy truck cranes, all‑terrain cranes, and large excavators.

This Sany Harness 1-Jib integrates a two‑wire plug jacket, a precision pin, a locking mechanism, a high‑quality cable, a two‑wire socket jacket, a receptacle, and a secondary pole lock into a single, factory‑matched assembly. When you need authentic replacement components, trust Sany Parts to deliver factory-original quality and precise fitment.

The Sany Harness 1-Jib is specifically designed for Sany STC‑series and SAC‑series cranes, providing secure, weather‑resistant electrical connections for jib extension and luffing controls, ensuring accurate sensor feedback, reliable safety interlock, and minimal downtime in the most demanding construction and mining environments.

Sany Harness 1-Jib — OEM jib electrical harness assembly for Sany heavy truck cranes and all‑terrain cranes

What is the Sany Harness 1-Jib?

The Sany Harness 1-Jib is a complete OEM electrical interconnect assembly that provides reliable power and signal transmission for jib‑mounted sensors, limit switches, and safety devices on Sany heavy lifting equipment. This harness ensures that critical jib functions—including angle sensing, extension limits, and overwind protection—are communicated accurately to the crane’s control system.

The Sany Harness 1-Jib comprises seven precision‑engineered components that function as an integrated electrical connection system. The two‑wire plug jacket (B241200000582) and two‑wire socket jacket (B241200000590) provide secure, weather‑resistant mating interfaces. A precision pin (B249900000288) and a locking mechanism (A249900001139) ensure positive engagement and prevent accidental disconnection. A high‑quality cable (A241900000342) transmits power and signals, while a receptacle (B229900001093) provides the mounting interface. A secondary pole lock (B241200000584) adds an extra layer of retention for the socket connection.

The Sany Harness 1-Jib is critical for safe jib operation and diagnostics. It ensures that jib angle sensors provide accurate data to the load moment indicator, that limit switches correctly interrupt hoist power at maximum extension, and that the overwind protection system remains functional. The harness’s robust construction resists vibration, moisture, and temperature extremes, making it ideal for harsh mining and construction environments.

This assembly is a direct replacement for worn or damaged jib harnesses on Sany STC‑series and SAC‑series cranes. By using this genuine assembly, you ensure that all wire colors, connector pinouts, and locking mechanisms match factory specifications, eliminating wiring errors and ensuring reliable communication between the jib sensors and the cab control system throughout the crane’s service life.

Product Parameters of Sany Harness 1-Jib

Technical specifications: The Sany Harness 1-Jib is rated for a maximum voltage of 600V AC/DC and a current capacity of 10A per conductor. The cable (A241900000342) is manufactured from stranded, tinned copper with XLPE insulation, rated for -40°C to +125°C, and features a durable, oil‑resistant PVC jacket. The cable length is factory‑cut to match the routing of Sany STC and SAC series crane jibs.

The two‑wire plug jacket (B241200000582) and socket jacket (B241200000590) are molded from flame‑retardant, impact‑resistant thermoplastic, featuring gold‑plated contacts for low resistance and reliable signal transmission. The pin (B249900000288) is a hardened steel locking pin with a corrosion‑resistant zinc‑nickel coating. The lock (A249900001139) and secondary pole lock (B241200000584) provide positive latching to prevent accidental disconnection under vibration. The receptacle (B229900001093) is a panel‑mount socket with IP67 sealing.

All components are manufactured under ISO 9001:2025 certification and are 100% traceable to original production batches. The assembly has been validated on Sany STC and SAC series cranes, demonstrating a field service life exceeding 8,000 operating hours under heavy‑duty conditions when properly maintained.

Why Choose Our Sany Harness 1-Jib?

Complete 7‑Component OEM Kit — No Missing Parts: The Sany Harness 1-Jib includes every plug, socket, pin, lock, cable, and receptacle as a single, factory‑matched assembly. This eliminates compatibility problems that arise from sourcing individual components from different suppliers, ensuring that all connector types, wire colors, and locking mechanisms match factory specifications.

Dual‑Locking System for Vibration‑Resistant Connections: The Sany Harness 1-Jib features a primary lock (A249900001139) and a secondary pole lock (B241200000584) that provide redundant retention for the socket connection. This dual‑locking system ensures that the harness remains securely connected even under the severe vibration and shock loads experienced during crane operation, preventing intermittent signal loss and electrical faults.

IP67 Sealing for Harsh Environment Protection: The Sany Harness 1-Jib uses connectors and receptacles that are sealed to IP67 standards, providing protection against dust ingress and temporary immersion in water. This ensures that the electrical connections remain reliable even in muddy, wet, or dusty job sites, reducing the risk of corrosion‑related failures.

Fleet‑Proven Reliability and Comprehensive Warranty: The Sany Harness 1-Jib is standard equipment on Sany STC‑series and SAC‑series cranes in over 80 countries. Fleet data shows that genuine Sany jib harness assemblies deliver an average service life exceeding 8,000 hours—three times longer than generic aftermarket assemblies—while eliminating connector corrosion and harness chafing incidents. The assembly is backed by a 24‑month manufacturer’s warranty covering cable integrity, connector sealing, and locking mechanism function. Volume pricing, consignment stock, and global technical support are available for large fleets.

What are the Routine Maintenance Considerations for the Sany Harness 1-Jib?

Daily visual inspection before operation: Before each shift, inspect the Sany Harness 1-Jib for visible damage to the cable, connectors, and locking mechanisms. Check that the cable is not chafing against moving jib sections and that all connectors are fully engaged and locked. Look for any signs of corrosion on the pin (B249900000288) or receptacle (B229900001093). Ensure the secondary pole lock (B241200000584) is correctly positioned to prevent accidental disconnection.

Cable and connector inspection — every 250 operating hours: With the power off, inspect the cable (A241900000342) for insulation cracking, abrasion, or hardening. Check the plug and socket jackets for cracks or deformation. Clean all connectors with electrical contact cleaner and apply dielectric grease to the seals to maintain IP67 protection. Verify that the locking mechanisms (A249900001139 and B241200000584) operate smoothly and provide positive latching.

Pin and receptacle check — every 500 operating hours: Inspect the pin (B249900000288) for wear or corrosion; replace if any damage is visible. Check the receptacle (B229900001093) for loose mounting or damaged seals. Verify that the pin fully engages the receptacle and that the locking mechanism clicks into place securely. If any connector shows signs of intermittent contact, replace the entire harness assembly.

Preventative replacement schedule — every 4,000 hours or 2 years: For high‑use cranes, Sany recommends a full replacement of the Sany Harness 1-Jib every 4,000 operating hours or 2 years. Replace the entire assembly, including the cable, connectors, pin, locks, and receptacle, as a set—even if no visible wear is apparent, internal conductor fatigue, seal hardening, and spring‑tension loss can occur without warning. Keep a detailed maintenance log tracking inspection results and component replacement history. By following this proactive schedule, the Sany Harness 1-Jib can reliably exceed 8,000 operating hours.

The cable (A241900000342) is the primary signal and power conduit of the Sany Harness 1-Jib. It is constructed with two insulated conductors, a drain wire for shielding, and an overall braided shield to protect against electromagnetic interference. The cable is rated for continuous flexing and is resistant to oils, UV, and abrasion, making it ideal for the dynamic environment of a telescoping jib. The cable length is precisely matched to the jib’s routing path, eliminating the need for field splicing that could introduce failure points.

The two‑wire plug jacket (B241200000582) and socket jacket (B241200000590) are designed with a keyed orientation to prevent mismating. The gold‑plated contacts provide a low‑resistance connection that remains stable over thousands of mating cycles. The jackets are molded from a high‑durometer thermoplastic that resists cracking and provides a secure grip for installation and removal. The integrated cable strain relief protects the wire terminations from bending fatigue.

The locking mechanism (A249900001139) engages with a corresponding feature on the socket, providing a positive audible click when fully mated. The secondary pole lock (B241200000584) adds an additional retention element that secures the socket to the panel‑mounted receptacle (B229900001093). This dual‑locking system prevents the connector from being pulled apart by cable tension or vibration, ensuring uninterrupted signal transmission.

For Sany cranes operating in extreme cold climates (below -25°C), special considerations apply to the Sany Harness 1-Jib. The cable insulation remains flexible down to -40°C, but the PVC jacket may stiffen; handle with care during installation. The locking mechanisms should be checked for ease of operation, as cold temperatures can increase friction. Use a silicone‑based lubricant on the locking tabs to ensure smooth engagement. The receptacle should be inspected for ice buildup that could prevent full mating.

The Sany Harness 1-Jib is also available as part of a complete jib electrical system overhaul kit, which includes the harness, the jib angle sensor, and the overwind limit switch. Sany recommends this complete‑kit approach for vehicles with over 8,000 operating hours, as it allows the entire jib electrical and safety system to be renewed in a single service event, eliminating the risk of hidden connector corrosion or cable fatigue that could compromise jib safety.

Fleet managers using this strategy report a 50% reduction in jib‑related safety incidents and a 40% reduction in total crane maintenance costs over the equipment’s life. Contact our parts specialists through the Get Quotation button above for custom kit configurations tailored to your fleet’s specific needs.