Genuine ZOOMLION Crane Height Limit Switch GJ-3-1.1 (PART NUMBER 1020520125)
Essential Safety Protection for ZOOMLION Cranes Lifting Operations
The ZOOMLION GJ-3-1.1 Hoisting Limit Switch (also known as the A2B Switch or Anti-Two Block Switch) is a critical safety component designed to prevent the crane hook block from colliding with the boom head. As a genuine ZOOMLION part, it ensures maximum reliability and seamless integration with your machine’s electrical system, preventing costly damage and ensuring site safety.
Industrial Grade Durability: Built with high-strength, corrosion-resistant materials to withstand extreme weather and harsh construction environments.
High Sensitivity: Instantaneous response to prevent overwinding, protecting your wire rope and winch system.
Perfect Fit: Direct replacement for SAP 1020520125, eliminating compatibility issues common with aftermarket sensors.
Wide Compatibility with ZOOMLION Mobile Cranes
This limit switch is a versatile spare part widely utilized across ZOOMLION’s global fleet of truck and mobile cranes. It is engineered to meet the high-performance standards of both classic and new-generation models.
We maintain a constant stock of the 1020520125 Height Limit Switch to ensure your equipment experiences minimal downtime. We offer fast international express shipping (DHL/FedEx/UPS) to get your parts delivered directly to your job site.
How to Inquiry
To provide you with the most accurate quotation and shipping lead time, please include the following information in your inquiry:
Crane Identification: Machine model and a clear photo of the Vehicle Nameplate.
Part Confirmation: Confirm the SAP Material Number (1020520125).
Order Quantity: How many units do you require?
Shipping Information: Complete mailing address, including Country, City, and Zip/Postal Code.
Contact our spare parts specialists today to secure your genuine ZOOMLION components!
ZOOMLION QY55V532 Truck Crane Spare Parts
D00631140003060000Z
36 00631146260000001 Control room electrical system
37 00631148000000000 Rotating platform electrical system
37 00631146360000000 Rotating platform electrical system
38 00631146470000000 Main boom electrical system
38 00631146460000000 Main boom electrical system
39 00631146500000000 Auxiliary boom electrical system
39 00631146510000000 Auxiliary boom electrical system
40 00631144010000000 Throttle installation
41 00631143010000001 Hydraulic oil tank
42 00631141570000000 Hydraulic system schematic diagram
43 00631141690000000 Hydraulic system piping diagram for the vehicle
44 00631141750000000 Hydraulic system piping diagram for the vehicle chassis
45 00631143920000000 Oil pump transmission device
46 00631145800000000 Leg control mechanism
47 00671630000060001 Special chassis for ZLJ5422JQZV3 truck crane
48 00631141110000000 Fifth leg
49 00631250200000000 Auxiliary boom
50 00631121200000000 Tip pulley assembly
51 1021500367 Monitoring device + monitoring control system software 50A-5-2-UG
51 1021500376 Torque limiter 50A-5-2-UG
52 204060002 Hydraulic oil L-HM46 1000L
52 204060003 Hydraulic oil L-HM68 (high-temperature oil) 1000L
52 204060026 10# aviation hydraulic oil 10# (low-temperature oil) 1000L
52 204060043 Hydraulic oil L-HV32 (standard) 1000L
53 00631157600000000 Air conditioning device
54 00631147500000000 Heating device
57 1090400117 Hook (optional component)
59 00631143430000000 Rotating platform and accessory welding package
60 00630876600000000 Electrical optional components installation
