SANY Crane Height Limiter (Anti-Overwinding Switch)
Designed specifically for SANY and various types of lifting equipment, this is a core safety device to prevent hook overtravel and ensure construction safety.
Read MoreCrane Anti-Two-Block Device Sourcing in China: Manufacturer, Factory and Supplier Guide | Jiemanda
Crane Anti-Two-Block Device Sourcing in China: Manufacturer, Factory and Supplier Guide
Use this page to review China Crane Anti-Two-Block Device Manufacturer, Factory & Suppliers during an import distributor supplier shortlist. It focuses on practical comparison points, especially packing method, export handling, and the details needed before an RFQ.
When planning a custom project, clear requirements help reduce back-and-forth. Compare application fit, sample confirmation steps, technical details, and quality check questions before deciding which supplier should receive your full inquiry.
Hot Selling Product
XCMG Original REC-W1000-SL Wireless Anti-Overwind Device (Part No.: 803696259)
This is an original factory-equipped wireless anti-overwind protection device for XCMG truck-mounted cranes. It monitors the boom height in real time, triggering an audible-visual alarm and cutting off dangerous movements when the lifting height approaches a critical threshold. This effectively prevents safety accidents such as wire rope breakage due to overwinding and boom damage from overextension, making it a core component for safe lifting operations.
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SANY Crane Height Limiter (ZN101W)
This product is the original factory-matched height limiter (anti-overwinding switch) for SANY truck cranes, specifically designed for safe crane operations. When the hook rises to the preset height, the device automatically cuts off the hoist’s lifting circuit and triggers an audible-visual alarm, preventing safety accidents such as hook overtravel and wire rope breakage. It is an indispensable safety protection device for lifting operations.
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Zoomlion GJ-1 Anti-Overwinding Switch
The GJ-1 Anti-Overwinding Switch is a safety protection device designed specifically for engineering lifting equipment, primarily used in the hoisting mechanisms of mobile cranes, crawler cranes, and similar machinery. It triggers automatically when the hook reaches the preset upper limit position, cutting off the power supply to prevent equipment damage and safety accidents caused by wire rope overwinding. It is a core component for ensuring safe lifting operations.
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XCMG XESA2B-CL15M
This device is a safety protection component designed for various lifting equipment. It uses a weight sensor to detect the hook position. When the hook rises to the preset height, it automatically cuts off the hoisting power circuit to prevent collision between the hook and the top of the boom (anti-two block/anti-overwinding), effectively protecting equipment and personnel safety. Built with industrial-grade protection, it withstands harsh outdoor working conditions of construction machinery and is a mandatory core component required by lifting machinery safety regulations.
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WIKA DLG200-4EH Industrial-Grade Data Logger
Engineered for harsh industrial environments, it stably records critical data to ensure operational safety and traceability of your equipment.
Read MoreHow To Compare anti two block device crane Options
Crane Anti-Two-Block Device Product Guide
The related product list helps you compare China Crane Anti-Two-Block Device Manufacturer, Factory & Suppliers by actual product direction rather than keyword wording alone. Check whether each product supports supplier shortlist review, then use the table below to prepare a clearer RFQ.
| Criterion | What To Check | Why It Matters | Buyer Tip |
|---|---|---|---|
| Export packing | Ask carton, pallet, labeling plan | Reduces transit and customs risk | Request packing photos before shipment |
| Customization scope | Confirm voltage, cable, bracket options | Fits crane model and market needs | Send drawings with RFQ |
| Sample confirmation | Approve sample before bulk order | Verifies fit and function early | Use same packing as bulk |
| QC documents | Ask inspection record and test checklist | Supports distributor acceptance checks | Define AQL and key tests |
| After-sales support | Confirm spare parts and response process | Helps manage end-user claims | Request English manuals and wiring guide |
How To Choose anti two block device crane Supplier
China Crane Anti-Two-Block Device Manufacturer, Factory & Suppliers should be evaluated by product fit, customization support, packing method, export handling, and how clearly the supplier answers technical questions.
For an import distributor, the best starting point is a focused inquiry that includes crane application, required device type, quantity range, destination, packaging expectations, and any sample or inspection requirements.
Begin by confirming the working application for the crane anti-two-block device. Share crane type, installation environment, required function, and any known specification limits so the supplier can check whether a standard product or adjusted configuration is more suitable.
For shortlist review, compare more than price. Ask about sample confirmation, drawings or datasheets, wiring or mounting details, inspection steps, labeling options, carton or crate packing, and export document handling. These points help an import distributor judge operational risk before placing an order.
If customization is needed, separate must-have requirements from preferred details. Provide photos, target market notes, branding needs, and expected order volume. This makes it easier for the supplier to comment on feasibility, lead time, and whether a sample should be approved first.
When reviewing supplier replies, look for clear answers and useful follow-up questions. A practical response should help you compare related products, confirm application fit, understand packing options, and prepare a more accurate RFQ for internal approval.
| Criteria | Importance | Description | Example Options |
|---|---|---|---|
| Packing method | High | Protects device during export handling. | Carton, inner padding, labels |
| Customization scope | High | Matches crane layout and controls. | Voltage, cable, bracket |
| Technical confirmation | High | Reduces wrong model selection. | Drawings, photos, specs |
| Quality check points | Medium | Supports distributor risk review. | Alarm, wiring, accessories |
| After-sales traceability | Medium | Helps manage service questions. | Model, batch, configuration |
Top Product Matches
Recommended Products
Top product matches should be reviewed by fit, specification clarity, customization readiness, and how well they support customization planning. Use these factors to shortlist practical options before contacting the supplier.
Top Selling Product Selection Factors
Blog Articles / Reviews
Rapid Shipment of XCMG Truck Crane Parts to Long-Term Middle East Customer
We have completed the packaging of a batch of XCMG truck crane parts in our warehouse, and the goods will be shipped to a long-term cooperative customer in the Middle East market. The parts cover a variety of high-frequency consumables, including pulleys, cables, displays, headlights, controllers, sensors, A2B limiters, display button films, hydraulic sensors, displacement […]
Crane Fault Code E02 Meaning and Troubleshooting
Instructions The specific meaning of crane fault code E02 varies depending on the crane model and control system. The core meanings applicable to mainstream XCMG, Zoomlion, and Sany cranes are as follows: Core Meaning Classification Zoomlion and other models (related to the hoisting mechanism): Indicates overcurrent during hoisting acceleration. During the acceleration process of hoisting, […]
Crane Accessories Safety Inspection Guide
Crane accessories refer to the general term for various components of cranes. What are the commonly used crane accessories in daily operations? And how to conduct proper safety inspections on these accessories? Below is a detailed explanation to help ensure operational safety. Drum Focus on checking whether the drum body and its edges have fatigue […]
Rapid Shipment of XCMG Truck Crane Parts to Long-Term Middle East Customer
We have completed the packaging of a batch of XCMG truck crane parts in our warehouse, and the goods will be shipped to a long-term cooperative customer in the Middle East market. The parts cover a variety of high-frequency consumables, including pulleys, cables, displays, headlights, controllers, sensors, A2B limiters, display button films, hydraulic sensors, displacement […]
Use buyer-style feedback to see how other sourcing teams describe specification checks, custom project planning, supplier comparison, and RFQ preparation.
I used this anti two block device crane page to separate sensor, wiring, and installation questions before sending a more focused sourcing inquiry.
I needed a clearer way to discuss anti two block device crane requirements, and this page helped me structure notes for our maintenance team.
Before drafting an RFQ, I checked this anti two block device crane tag page to identify the application details we should mention first.
This anti two block device crane page gave me a practical checklist for asking about fit, operating environment, and connection details.
Frequently Asked Questions
How should an import distributor compare Jiemanda with other China Crane Anti-Two-Block Device Manufacturer, Factory & Suppliers for shortlist review?
Compare device type, mounting method, wiring requirements, enclosure needs, packing method, labeling, and export document support. Ask each supplier to explain customization limits and inspection steps so your RFQ comparison is based on the same technical scope.
What sample details should be confirmed before ordering an anti two block device crane project from China?
Confirm sample configuration, voltage, sensor type, cable length, alarm output, mounting bracket, and package protection. For distributor review, request photos or documents showing the packed sample and key technical markings before using it for customer approval.
Which technical specifications are most important when preparing an RFQ for a crane anti-two-block device?
List crane type, working environment, hoist arrangement, load line layout, control interface, rated voltage, required alarm behavior, and installation space. Clear technical inputs help the supplier judge application fit and reduce unsuitable configuration suggestions.
What quality checks should be discussed with a China Crane Anti-Two-Block Device Manufacturer, Factory & Suppliers before shipment?
Discuss appearance checks, wiring continuity, alarm response, switch action, label accuracy, accessory completeness, and packing verification. Import distributors should also ask how inspection records or photos can be shared for internal review before cargo release.
What after-sales support questions should distributors ask for customized anti two block device crane orders?
Ask how installation questions are handled, what troubleshooting information is needed, whether replacement parts can be identified by model or batch, and how configuration records are maintained. This helps distributors support local customers without relying on vague product descriptions.
How can an import distributor judge whether an anti-two-block device fits different crane applications?
Review the crane structure, hook travel path, limit point, operating environment, control circuit, and available mounting position. Application fit should be confirmed through drawings, photos, or a written specification exchange before finalizing packing and export handling needs.
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Send your crane application, required specifications, quantity range, destination, packing expectations, and sample needs so the supplier can respond with a more relevant proposal.
