ZOOMLION Original Crane Height Limit Switch 1020522057 (ZN101V)
Essential Anti-roll Safety Device for Professional Lifting Operations
Product Overview
The ZOOMLION Height Limit Switch (Part No: 1020522057, Model: ZN101V), commonly known as the Anti-roll or Anti-two block switch, is a critical safety component installed on the boom head of ZOOMLION cranes. Its primary function is to prevent the hook block from colliding with the boom tip (over-hoisting), ensuring the safety of the operator, the machinery, and the site personnel.
Compatible Models & Applications
This genuine ZN101V switch is designed for seamless integration with a wide range of ZOOMLION Lifting Machinery, including:
The ZN101V model is calibrated to provide immediate signal feedback to the crane’s control system. Once the limit is reached, it triggers an automatic cut-off to prevent dangerous over-rolling, effectively protecting the wire rope and boom structure.
Weather-Resistant Construction
Designed for harsh outdoor construction environments, this switch features a rugged, IP-rated housing that is resistant to dust, rain, and extreme temperature fluctuations. Whether in tropical heat or arctic cold, the ZOOMLION original switch remains reliable.
Easy Installation & Plug-and-Play
As a genuine spare part, the 1020522057 matches the original factory wiring and mounting points perfectly. This ensures a quick replacement process, minimizing equipment downtime.
Technical Specifications
Brand: ZOOMLION (Genuine Spare Part)
Part Number: 1020522057
Model Number: ZN101V
Name: Height Limit Switch / Anti-roll Switch
Condition: 100% Brand New
Stock Status: Available and ready for international shipping
Ordering & Inquiry Details
Ensure the safety of your lifting operations with genuine ZOOMLION parts. Using original safety switches is the only way to guarantee compliance with international safety standards and protect your insurance coverage.
To receive a formal quotation and shipping estimate, please provide the following details when sending your inquiry:
Crane Nameplate: to verify the Serial Number
Purchase Quantity:
Delivery Information:
Destination Country
Full Shipping Address
Postal Code / Zip Code
QY55V532 Automotive Crane SPARE PARTS CATALOG
36 00631146260000001 Operator’s Cab Electrical (Imported) 1
37 00631148000000000 Turntable Electrical (Domestic) 1
37 00631146360000000 Turntable Electrical (Imported) 1
38 00631146470000000 Main Boom Electrical (Domestic) 1
38 00631146460000000 Main Boom Electrical (Imported) 1
39 00631146500000000 Sub Boom Electrical (Domestic) 1
39 00631146510000000 Sub Boom Electrical (Imported) 1
40 00631144010000000 Throttle Installation 1
41 00631143010000001 Hydraulic Oil Tank 1
42 00631141570000000 Hydraulic System Schematic 1
43 00631141690000000 Upper Vehicle Hydraulic System Piping Diagram 1
44 00631141750000000 Lower Vehicle Hydraulic System Piping Diagram 1
45 00631143920000000 Pump Drive Unit 1
46 00631145800000000 Outrigger Control Mechanism 1
47 00671630000060001 ZLJ5422JQZV3 Special Chassis for Truck Crane 1
48 00631141110000000 Fifth Outrigger 1
49 00631250200000000 Sub Boom 1
50 00631121200000000 Tip Sheave Assembly 1
51 1021500367 Monitor + Monitoring and Control System Software 50A-5-2-UG (Domestic) 1
51 1021500376 Moment Limiter 50A-5-2-UG (Imported) 1
52 204060002 Hydraulic Oil L-HM46 1000L
52 204060003 Hydraulic Oil L-HM68 (High-Temperature Use) 1000L
52 204060026 No. 10 Aviation Hydraulic Oil 10# (Low-Temperature Use) 1000L
52 204060043 Hydraulic Oil L-HV32 (Standard) 1000L
53 00631157600000000 Air Conditioning Unit 1
54 00631147500000000 Heating Device 1
57 1090400117 Hook (Optional) 1
59 00631143430000000 Turntable and Accessories Welding Package 1
60 00630876600000000 Electrical Optional Equipment Installation 1
