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 Sourcing in China: Manufacturer, Factory and Supplier Guide | Jiemanda
Crane Anti-Two-Block Sourcing in China: Manufacturer, Factory and Supplier Guide
Use this page to evaluate China Crane Anti-Two-Block Manufacturer, Factory & Suppliers from the perspective of OEM project planning. It brings together related products, practical selection checks, and buyer questions so your inquiry can be more specific from the beginning.
For a procurement manager, the most useful starting point is customization scope and sample approval. Review the product matches, comparison notes, FAQs, and recent buyer-style feedback before sending final requirements.
Hot Selling Product
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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XCMG Old Model Crane Original Lower Cab Control Mainboard (ER81-60-12)
Core Selling Points Original Equipment Fit: Factory-matched board for XCMG QY Series cranes produced between 2006-2010, direct replacement without wiring modification. Stable & Reliable: Adopts industrial-grade components with anti-vibration and anti-interference performance, suitable for complex crane operating environments. Preferred for Maintenance: Rare dedicated mainboard for old cranes in the market, perfectly replacing faulty boards to […]
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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 in crane Options
Crane Anti-Two-Block Product Guide
The related product list helps you compare China Crane Anti-Two-Block Manufacturer, Factory & Suppliers by actual product direction rather than keyword wording alone. Check whether each product supports OEM project planning, then use the table below to prepare a clearer RFQ.
| Criterion | What To Check | Why It Matters | Buyer Tip |
|---|---|---|---|
| Application fit | Match crane type and hook travel | Avoid wrong limit setup | Share OEM crane drawings |
| Customization scope | Housing, cable, voltage, connector | Fits project BOM needs | List required options in RFQ |
| Sample approval | Request sample before batch order | Confirms installation and signal logic | Test on target crane model |
| Technical details | Review load block clearance and switch type | Supports correct anti-two-block action | Ask for wiring and mounting data |
| Quality and support | Confirm inspection items and after-sales contact | Reduces export order risk | Include test report request |
How To Choose anti two block in crane Supplier
China Crane Anti-Two-Block Manufacturer, Factory & Suppliers should be evaluated by how well the product matches your crane application, installation needs, signal requirements, and project approval process.
For procurement managers, the best next step is to share drawings, working conditions, quantity range, and sample expectations. This helps the supplier confirm technical details and respond with a more useful quotation.
Start with the crane type, working environment, mounting position, and required anti-two-block function. Clear application details help the supplier check whether a standard model is suitable or whether customization is needed.
For OEM project planning, confirm the customization scope early. Ask about housing, cable length, connector type, voltage, signal output, label requirements, packaging, and any documentation needed for your internal approval.
Before placing a bulk order, discuss sample confirmation. Define how the sample will be reviewed, which technical details must be checked, and what changes can still be made after testing or installation review.
When comparing supplier replies, look beyond unit price. A useful response should address application fit, quality checks, lead time, export packing, after-sales support, and whether the supplier can support repeat orders with consistent specifications.
| Criteria | Importance | Description | Example Options |
|---|---|---|---|
| Mounting fit | High | Matches crane structure and boom layout | Bracket angle, hole spacing |
| Electrical output | High | Fits control circuit requirements | NO/NC contact, voltage |
| Sample review | High | Confirms design before order planning | Drawing plus working sample |
| Customization scope | Medium | Supports OEM integration needs | Cable, connector, label |
| Support materials | Medium | Helps RFQ and installation review | Wiring note, test method |
Top Product Matches
Recommended Products
Top product matches should be reviewed by fit, specification clarity, customization readiness, and how well they support application matching. 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 […]
Recent buyer feedback can help you understand common review situations, such as checking specifications, comparing suppliers, preparing an RFQ, or confirming export order needs.
I used this tag page to frame our anti two block in crane requirements before contacting suppliers, especially around limit switch function and installation questions.
I was comparing anti two block in crane options and this page helped me ask more precise questions about compatibility, reset behavior, and site conditions.
I needed a quick way to compare anti two block in crane information, and the page kept my checklist focused on application fit rather than broad catalog claims.
I referenced this anti two block in crane page while preparing questions for our maintenance team, so we could separate must-have functions from optional features.
Frequently Asked Questions
How should an OEM procurement manager confirm samples from a China Crane Anti-Two-Block Manufacturer, Factory & Suppliers?
Confirm the sample against boom type, rope reeving, mounting position, switch logic, connector style, and operating voltage. Ask for drawings, wiring notes, and test points so engineering can review fit before RFQ finalization.
What technical details are important when sourcing anti two block in crane assemblies for OEM projects?
Key details include limit switch type, counterweight design, cable length, enclosure material, voltage range, contact output, mounting bracket, and reset behavior. These details help match the device to crane structure and control system layout.
What quality checks should be discussed with a China Crane Anti-Two-Block Manufacturer, Factory & Suppliers?
Discuss functional actuation tests, wiring continuity checks, housing inspection, load-trigger verification, and appearance review. For OEM planning, define inspection points clearly so incoming quality teams can compare samples and batch products consistently.
How can after-sales support be evaluated before selecting an anti two block supplier?
Review whether the supplier can provide wiring guidance, troubleshooting steps, replacement part references, and application feedback. For export orders, clear documentation and responsive technical communication are often more useful than broad service claims.
How do I judge application fit for different crane anti-two-block configurations?
Compare the crane’s boom geometry, hoist line path, hook block clearance, duty environment, and control input requirements. A suitable configuration should actuate reliably without interfering with normal lifting movement or operator visibility.
What custom options can be requested when building a product shortlist?
Common customization points include cable length, connector, bracket shape, contact form, voltage, counterweight size, label content, and housing material. Provide target crane drawings or installation photos to reduce mismatches during sample approval.
Leave Your Message
Send your crane type, application details, required specifications, quantity range, and sample approval needs so the supplier can review fit and respond with practical information.
