Sany Block-Transferable

The Sany Block-Transferable is a precision‑engineered hydraulic interface manifold that consolidates and redirects oil flow between multiple circuits on Sany heavy truck cranes, all‑terrain cranes, and large excavators, enabling efficient hydraulic system integration.

This Sany Block-Transferable integrates a high‑strength transferable block and two precision pipe connectors 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 Block-Transferable is specifically designed for Sany STC‑series and SAC‑series cranes, providing a centralized, leak‑free junction point that simplifies hydraulic hose routing, reduces potential leak paths, and enhances system reliability in the most demanding lifting and excavating applications.

Sany Block-Transferable — OEM hydraulic transfer manifold assembly for Sany heavy truck cranes and all‑terrain cranes

What is the Sany Block-Transferable?

The Sany Block-Transferable is a complete OEM hydraulic transfer manifold that consolidates oil flow from a single source and redistributes it to multiple circuits on Sany heavy lifting equipment. This centralized interface simplifies hose routing, reduces connection points, and improves system reliability by minimizing potential leak paths.

This assembly comprises three precision‑engineered components that function as an integrated flow distribution hub. The transferable block is a forged steel manifold with precision‑machined ports. Two pipe connectors provide leak‑tight interfaces to the hydraulic hoses, each sized for specific flow requirements and tube diameters.

The Sany Block-Transferable is critical for hydraulic system organization and maintainability. It provides a single access point for pressure testing and system troubleshooting, enabling technicians to quickly diagnose system health without dismantling complex hose networks. The compact design reduces the number of threaded connections, minimizing potential leak points and simplifying maintenance.

This assembly is a direct replacement for worn or damaged hydraulic junction blocks on Sany STC‑series and SAC‑series cranes, as well as large excavators. By using this genuine assembly, you ensure that all port sizes, thread types, and internal flow passages match factory specifications, eliminating flow restrictions and pressure drop issues common with mismatched aftermarket adaptors.

Product Parameters of Sany Block-Transferable

Technical specifications: The Sany Block-Transferable is designed for a maximum operating pressure of 35 MPa (5,075 psi) with a total flow capacity matched to Sany crane hydraulic systems. The transferable block is manufactured from forged high‑strength steel with precision‑machined ports and O‑ring sealing surfaces.

The pipe connectors are zinc‑nickel coated for 500+ hours of salt spray resistance, featuring 24° metal‑to‑metal sealing cones that do not require gaskets or sealants. Each connector is sized for specific tube diameters (12 mm to 18 mm) to match the flow requirements of different hydraulic circuits.

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 Block-Transferable?

Complete 3‑Component OEM Kit — No Missing Parts: The Sany Block-Transferable includes the transferable block and both pipe connectors as a single, factory‑matched assembly. This eliminates compatibility problems that arise from sourcing individual fittings from different suppliers, ensuring that all thread types and sealing surfaces match factory specifications.

Forged Steel Construction for Maximum Strength and Reliability: The Sany Block-Transferable uses a forged steel manifold that provides superior strength and fatigue resistance compared to cast or fabricated alternatives. The forging process ensures a continuous grain structure, eliminating the porosity and stress risers found in cast components, resulting in a manifold that withstands the harshest mining and construction environments.

Corrosion‑Resistant Connectors for Long‑Term Durability: The Sany Block-Transferable uses zinc‑nickel coated pipe connectors that provide 500+ hours of salt spray resistance. This protection ensures that the connectors remain corrosion‑free in mining, coastal, and winter road salt environments, preventing thread seizure and maintaining seal integrity over the life of the machine.

Fleet‑Proven Reliability and Comprehensive Warranty: The Sany Block-Transferable is standard equipment on Sany STC‑series and SAC‑series cranes in over 80 countries. Fleet data shows that genuine Sany transferable block assemblies deliver an average service life exceeding 8,000 hours—three times longer than generic aftermarket fittings—while eliminating leakage and thread failure incidents. The assembly is backed by a 24‑month manufacturer’s warranty covering block cracking, connector leakage, and coating failure. Volume pricing, consignment stock, and global technical support are available for large fleets.

What are the Routine Maintenance Considerations for the Sany Block-Transferable?

Daily visual inspection before operation: Before each shift, inspect the Sany Block-Transferable for visible oil leaks around the transferable block and both pipe connectors. Look for any signs of chafing or abrasion where hoses connect to the manifold. Check that all connector nuts are securely tightened and that no fasteners have backed out. Any external drip indicates a loose fitting or damaged seal and requires immediate attention.

Connector torque check — every 500 operating hours: Using a calibrated torque wrench, verify the torque of both pipe connectors (A229900002495, A229900002581) to the manufacturer specification (typically 25‑30 Nm for M12 fittings). Mark each connector after torquing for quick visual verification. If any connector is loose, replace the sealing ferrule before reassembly—never reuse a compressed ferrule.

Transferable block inspection — every 1,000 operating hours: Inspect the transferable block (A820101340033) for any signs of corrosion, pitting, or damage to the sealing surfaces. If any surface damage is detected, replace the entire assembly. Check that all O‑rings are intact and not extruding from the sealing grooves. Replace any O‑rings that show signs of wear, cracking, or deformation.

Preventative replacement schedule — every 4,000 hours or 2 years: For high‑use cranes and excavators, Sany recommends a full replacement of the Sany Block-Transferable every 4,000 operating hours or 2 years. Replace the transferable block and both pipe connectors as a set. Even if no visible wear is apparent, internal seal degradation and fatigue can occur without warning. Keep a detailed maintenance log tracking torque values and inspection results. By following this proactive schedule, the Sany Block-Transferable can reliably exceed 8,000 operating hours.

The transferable block (A820101340033) is the main body of the Sany Block-Transferable. This forged steel block is machined with multiple precision ports: one inlet and two outlets (or a combination depending on circuit design). The internal passages are sized to minimize pressure drop while maintaining adequate flow for multiple simultaneous functions. The block is equipped with O‑ring face seal (ORFS) or 24° cone sealing surfaces, ensuring leak‑free connections under the full operating pressure range.

The pipe connectors (A229900002495, A229900002581) are manufactured from high‑strength steel with precision‑machined threads and sealing surfaces. Each connector features a captive ferrule design that creates a positive mechanical lock on the hydraulic tube, preventing loosening under severe vibration. The connectors are zinc‑nickel coated to resist corrosion and are compatible with various tube diameters, ranging from 12 mm to 18 mm depending on the circuit flow requirements.

The design of the Sany Block-Transferable allows for multiple connection configurations. The block can be used as a distribution manifold (one inlet, multiple outlets) or as a collection manifold (multiple inlets, one outlet). This flexibility makes it suitable for a wide range of hydraulic circuits, including boom lift, arm crowd, bucket curl, swing, and auxiliary functions.

For Sany cranes and excavators operating in extreme cold climates (below -25°C), special considerations apply to the Sany Block-Transferable. The O‑ring seals in the block may become harder; allow the machine to idle for 10‑15 minutes before applying full hydraulic pressure. Connector torque should be checked after the first cold cycle, as thermal contraction can reduce clamping force. Use low‑viscosity hydraulic fluid (ISO VG 22) to ensure proper flow through the manifold during cold starts.

The Sany Block-Transferable is also available as part of a complete hydraulic system diagnostic kit, which includes the block assembly, a high‑pressure test gauge, and a set of test hoses. Sany recommends this complete‑kit approach for maintenance teams to ensure consistent, accurate pressure measurements across all hydraulic circuits. By using the genuine block as the connection point, technicians can quickly diagnose pump output, valve spool leakage, and cylinder internal bypass without disconnecting hoses.

Fleet managers using this strategy report a 50% reduction in hydraulic system diagnosis time and a 40% reduction in total hydraulic 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.