HSZ-CB Chain Block Ball Bearing Manual Chain Hoist
Looking for a heavy-duty HSZ-CB chain block? Featuring smooth ball bearings, EN13157 certification, DIN568 chains, and optional load limiters. Inquire for direct factory quotes!
Description
Product Overview
The HSZ-CB HSZ-CB Chain Block (recognized in European and international rigging compliance standard sectors as the Ball Bearing Manual Chain Hoist, and sourced across Latin America as Polipasto manual con rodamientos) is a high-performance, heavy-duty manual lifting system engineered for high mechanical efficiency and smooth, continuous overhead operation. Manufactured to meet strict European compliance under EN13157 safety specifications, this series is purpose-built for intensive B2B applications across shipyards, manufacturing facilities, mining complexes, and heavy infrastructure sites.
Featuring internal precision ball bearings, this EN13157 certified manual chain block minimizes internal drive friction, allowing operators to achieve continuous lifting with reduced manual physical exertion. The hoist utilizes high-strength lifting chains conforming strictly to DIN568 manufacturing standards coupled with a zinc-plated hand chain to prevent jamming. The HSZ-CB can also be equipped with an optional mechanical load limiter mechanism to prevent overload hazards, making it a reliable solution for rigorous material handling environments.
Advanced Mechanical Engineering & Safety Innovations
Heavy-duty rigging demands certified structural compliance, low operating torque, and durable drive components:
Internal Precision Ball Bearings: Upgraded with high-efficiency ball bearings supporting the main drive pinion and load sheaves. This design minimizes mechanical drag, lowers hand pull effort, and extends overall component service life.
EN13157 & DIN568 European Standard Compliance: Fully compliant with EN13157 international safety standards for hand-operated hoists, paired with high-grade DIN568 load chain lifting hoist steel chains for certified load-bearing integrity.
Optional Mechanical Overload Protection: Can be fitted with an optional slip-clutch load limiter mechanism at an additional cost to prevent operational damage caused by attempting lifts beyond rated capacities.
Drop-Forged Heat-Treated Safety Hooks: High-tensile alloy hooks undergo specialized thermal treatment to ensure toughness. Under extreme overload scenarios, the hooks bend gradually rather than snapping, offering clear visual warnings to site operators.
Technical Specifications & Parameter Matrix
Certified engineering parameters, dimensional hook clearances, and packaging metrics for the complete HSZ-CB industrial manual chain hoist 0.5t to 10t lineup:
| Model | Capacity | Standard Lift | Test Load | Min. Distance Between Hooks | Chainpull to Lift Full Load | No. of Load Chain Fall Lines | Diameter of Load Chain | Net Weight | Gross Weight | Packing Measurement |
| CB1/2 | 0.5 t | 2.5 m | 0.75 t | 240 mm | 221 N | 1 | 6.0 mm | 8.4 kg | 9.4 kg | 28 * 21 * 17 cm |
| CB1 | 1.0 t | 2.5 m | 1.50 t | 270 mm | 304 N | 1 | 6.0 mm | 11.0 kg | 12.0 kg | 30 * 24 * 18 cm |
| CB1 1/2 | 1.5 t | 2.5 m | 2.25 t | 347 mm | 343 N | 1 | 7.1 mm | 13.5 kg | 14.5 kg | 34 * 29 * 20 cm |
| CB2 | 2.0 t | 3.0 m | 3.00 t | 380 mm | 314 N | 1 | 8.0 mm | 21.0 kg | 22.0 kg | 33 * 28 * 19 cm |
| CB3 | 3.0 t | 3.0 m | 4.50 t | 470 mm | 343 N | 2 | 7.1 mm | 22.0 kg | 23.0 kg | 38 * 33 * 20 cm |
| CB5 | 5.0 t | 3.0 m | 6.25 t | 600 mm | 381 N | 2 | 10.0 mm | 40.0 kg | 41.5 kg | 45 * 39 * 24 cm |
| CB10 | 10.0 t | 3.5 m | 12.50 t | 700 mm | 392 N | 4 | 10.0 mm | 77.0 kg | 85.0 kg | 55 * 51 * 29 cm |
B2B Procurement Note: Note that the CB2 model features a heavy-duty single-fall 8.0 mm load chain configuration, providing a compact hook-to-hook distance while maintaining a high working capacity. Custom chain lengths are available upon request for high-bay industrial facilities.
Critical Capacity Management & Safe Rigging Dynamics
Rigging supervisors operating the ball bearing heavy duty block and tackle fleet must account for specific chain reeving profiles and dimensional clearances:
Chain Fall Reeving vs. Headroom: As capacity scales from the compact CB1/2 up to the heavy CB10, the chain fall lines shift to balance mechanical torque. Models up to 2 Tons (CB1/2, CB1, CB1 1/2, and CB2) operate on a single load chain fall, keeping hook-to-hook distances low (240 mm to 380 mm). The 3T and 5T models use 2 chain falls, while the 10T variant utilizes 4 chain fall lines, increasing headroom to 700 mm.
Proof Load Safety Testing: Every unit undergoes factory proof load testing above its rated capacity. For instance, the CB5 is proof-tested up to 6.25 t to verify structural integrity and brake locking action before shipment.
Industrial Applications
Shipbuilding Yards & Naval Maintenance: Marine engineers utilize the Ball Bearing Manual Chain Hoist to haul engine components and position heavy steel plates in saltwater environments, benefiting from the anti-corrosive zinc-plated hand chain.
Automotive Plants & Heavy Equipment Assembly: Manufacturing shops rely on the EN13157 certified manual chain block to position heavy engine blocks, tooling dies, and structural frames with high precision.
Mining Operations & Underground Tunnels: Open-pit and underground mining teams deploy the sealed HSZ-CB Chain Block in dusty environments to maintain heavy extraction drills and conveyor lines without gear jamming.
Infrastructure Construction & Structural Steel Framing: Erection crews use the ball bearing heavy duty block and tackle to raise structural I-beams and concrete bridge segments on sites where electrical power access is unavailable.
