Product Specification

YD30-015 Series HSH-V Type Lever Block Webpage Detail Page (English)

I. Product Specifications (SPECIFICATION)

1. Core Parameter Summary Table

2. General Basic Parameters

II. Product Details (PRODUCT DETAILS)

1. Lever Transmission + High-Strength Chain, Easy Operation for Heavy Loads

(1) Lever Labor-Saving Design, Moving Heavy Loads with Low Force

• Significant Labor-Saving Effect: The 6T model requires only 370N of full-load operating force (equivalent to lifting a 37.7kg object), which can be easily pulled by 2 people; the 0.75T model needs only 140N of operating force, allowing single-hand operation by one person, suitable for scenarios with limited physical strength;
• Small Operating Space: The lever swing angle only needs 30°-45°, no need for large-scale chain pulling. It can operate normally even in narrow spaces (e.g., equipment gaps, between pipelines) with width ≤500mm, solving the pain point of "chain blocks requiring large space for chain pulling".

(2) T80-Grade Chain + Bearing Support, Smoother Transmission

• Rugged & Durable Chain: The breaking strength of T80-grade high-strength chain is much higher than that of ordinary chains. The 6T model chain can withstand a 9T test load without deformation, suitable for industrial heavy-load needs; hot-dip galvanizing for rust prevention ensures no rust during long-term storage when used in humid workshops or rainy outdoor environments;
• Bearings Improve Efficiency: The load sprocket is equipped with high-precision bearings. Compared with non-bearing designs, transmission resistance is reduced by 40%, lifting speed is increased by 30%, and sprocket wear is reduced, extending service life to 1.5 times that of ordinary products.

2. Lightweight Structure + Multiple Protections, Safe and Portable

(1) Lightweight Design, Easy to Carry for Multi-Scenario Use

• Light Weight for Easy Carrying: The 0.75T model has a net weight of only 7.3kg, which can be carried in a tool bag for easy access during equipment maintenance; the 6T model has a net weight of 26kg, which can be moved to the operation point by 2 people without relying on hoisting equipment;
• Compact Size Saves Space: The smallest model (0.75T) has a maximum size of only 295mm×148mm×128mm, which can be easily placed in narrow areas such as equipment gaps and elevator shafts, with no additional space required for installation and debugging.

(2) Multiple Safety Protections, No Risks in Heavy-Load Operations

• "Lock-on-Release" Brake: The built-in pawl-ratchet brake locks the load instantly when the lever is released during lifting or lowering. Even if the lever is accidentally stressed, it can prevent the load from falling. For example, when lifting a 3T device, if you pause to adjust the lifting point halfway, the device can stay suspended stably without any sliding;
• Anti-Detachment Hooks: Both upper and lower hooks are equipped with automatically resetting safety latches, with a latch opening angle ≤60°. When the load shakes, the latches always fit the hooks to prevent chain detachment; the hook roots are reinforced, increasing impact resistance by 50% to avoid overload breakage.

3. Full-Scenario Adaptation + Easy Maintenance, Low Usage Cost

(1) Multi-Environment Compatibility, No Additional Modification Needed

• Equipment Maintenance Scenarios: Suitable for disassembly and installation of motors, pumps, etc. It can accurately control the lifting height in narrow spaces to avoid collision with surrounding components;
• Pipeline Installation Scenarios: Can lift pipelines at an incline (≤15°). The chain meshes smoothly with the sprocket, allowing stable pipeline movement without additional fixing devices;
• Outdoor Rescue Scenarios: No power supply required. Lifting of trapped vehicles or materials can be achieved through lever operation. The rust-proof chain is suitable for muddy and rainy environments, and can be restored by rinsing with clean water after use.

(2) Easy-Maintenance Design, Reducing Later Costs

• Simple Daily Maintenance: After every 50 uses, only lithium-based grease (Model Li-2) needs to be added to the gear meshing area and bearings. No complex disassembly is required, and non-professionals can also complete it;
• Individual Component Replacement: Core components such as chains, hooks, and brakes can be purchased and replaced individually. For example, after chain wear, only the chain assembly needs to be replaced, no overall scrapping required, greatly reducing maintenance costs.

III. Application Scenarios (APPLICATION SCENARIOS)

1. Factory Equipment Maintenance (Core Scenario: Models 0.75T-3T)

1. Suspension Fixation: Select the YD30-015-3T model, hang the upper hook on the fixed lifting point at the top of the workshop, and check if the safety latch is reset;
2. Heavy Object Connection: Hang the lower hook on the special sling for the motor, adjust the chain length to ensure the motor is stressed horizontally and avoid collision with surrounding equipment;
3. Lifting Operation: One person pulls the lever. With the help of the lever's labor-saving principle, only 363N of force is needed to lift the motor slowly. Due to the small operating space, the lever swing angle is controlled within 40°, but it can still transmit smoothly; after lifting to the target height, release the lever, and the brake system locks the motor, allowing maintenance personnel to disassemble the motor safely.
   Result: Replacing the traditional "4-person lifting + crowbar assistance", the number of operators is reduced by 75%, and the lifting time is shortened from 1 hour to 15 minutes, suitable for power-off maintenance scenarios in narrow spaces.

2. Construction Pipeline Installation (Scenario 2: Models 1.5T-6T)

1. Fixed Installation: Select the YD30-015-6T model, hang the upper hook on a mobile tripod (load-bearing ≥10T), and fix the tripod on a flat ground;
2. Pipeline Lifting: Bind the lower hook to the middle of the steel pipe via a special sling, pull the lever to start lifting. The double-chain design ensures even force on the pipe with no shaking risk; due to smooth chain guidance, there is no chain jamming during inclined lifting;
3. Precise Installation: After the pipe is lifted to the bracket height, fine-tune the lever to control the lowering speed, place the pipe stably on the bracket, and release the lever to lock the brake, completing the installation.
   Result: No need to rent cranes, reducing the single installation cost by 90%. Two people can complete the operation, and it works continuously for 2 months in dusty outdoor environments without faults.

3. Warehouse Handling & Outdoor Rescue (Scenario 3: Models 0.75T-6T)

1. Warehouse Handling: Select the YD30-015-6T model, hang the upper hook on the warehouse crane, bind the shelf with the lower hook. The double-chain design distributes the load; pull the lever to lift the shelf. The lever operates flexibly in the narrow space, and the shelf is accurately placed on the target layer;
2. Outdoor Rescue: Select the YD30-015-3T model, hang the upper hook on the special lifting point of the rescue vehicle, connect the lower hook to the vehicle tow ring, and slowly lift the vehicle by pulling the lever. The rust-proof chain is suitable for muddy environments, and the rescue can be completed within 30 minutes.
   Result: Warehouse handling efficiency is increased by 85%, avoiding shelf damage caused by collision; outdoor rescue does not rely on electric equipment, suitable for power-free emergency scenarios.

IV. Frequently Asked Questions (FAQ)

Q1: How to choose the right model based on the operation scenario?

1. Load Matching: Select a model with a rated load 20% higher than the actual load (e.g., for lifting a 5T steel pipe, the 6T model can be selected, which has a test load of 9T, reserving a safety margin);
2. Space Adaptation: Choose models 0.75T-1.5T (small size) for narrow spaces (width ≤300mm), and models 3T-6T for medium spaces (300mm-600mm);
3. Operation Requirements: Choose models 0.75T-1T (operating force ≤186N) for single-person operation, models 1.5T-6T for two-person collaboration, and models ≥1.5T (better chain stability) for inclined lifting.

Q2: The lever jams during operation. Is this a fault? How to solve it?

1. Chain Deviation: If the chain deviates from the sprocket tooth grooves or guide structure, first release the lever, reset the chain to the correct position, and ensure the chain meshes precisely with the sprocket before operation;
2. Insufficient Lubrication: Lack of oil in gears or bearings can cause jamming. Add lithium-based grease to the gear meshing area and sprocket bearings, pull the lever 3-5 times to restore smoothness. Maintenance is recommended every 30 uses.

Q3: After long-term use, the brake effect decreases. How to adjust it?

1. Ensure the heavy object is placed stably, remove the brake end cover, and loosen the brake spring fixing nut;
2. Rotate the adjustment bolt clockwise (1/4 turn each time) to reduce the brake clearance. Test the brake effect after each adjustment until the heavy object is completely locked when the lever is released;
3. Tighten the fixing nut and reinstall the end cover. If the brake pad wear is ≥1mm, replace it with a new one (original accessories can be purchased separately).

Q4: When used outdoors at low temperatures (-20℃), will the chain become brittle and lever operation become more difficult?

1. Chain Performance: T80-grade chains maintain toughness at low temperatures, with no brittleness when bent at -20℃, and can be used normally. If the chain surface is frozen, thaw it with warm water before operation to avoid jamming caused by freezing;
2. Operation Optimization: Gear lubricating oil may solidify at low temperatures, making operation difficult. Before use, pull the lever empty 10-15 times (without load) to melt the lubricating oil using frictional heat. Start load operation only after the operation becomes smooth to avoid gear damage caused by brute force.