When hoisting materials on a construction site, in a shipyard, or during remote maintenance work, you need manual lifting equipment that will never jam, slip, or fail under pressure. Baoding OTOY Trading Co., Ltd. supplies premium manual chain blocks engineered to deliver exceptional mechanical advantage. Our hand hoists allow operators to lift multi-ton loads with minimal pulling effort, combining portability with rugged, heavy-duty performance for the toughest industrial environments.
We offer 4 highly specialized manual chain hoist models, strictly designed for smooth operation and heavy-duty demands:
HSZ-T & HSZ-C Type Chain Blocks: Classic, highly efficient round-body manual hoists designed for smooth chain guidance and long service life. Perfect for general construction, warehousing, and workshop lifting.
DE Type Four-Corner Chain Blocks: A robust, square-bodied design featuring an impact-resistant outer casing. The “Four-Corner” structure provides superior protection for the internal gears against harsh outdoor conditions and accidental drops.
Customized HSZ Chain Blocks: Tailored manual lifting solutions offering customizable chain lengths and load capacities to meet the exact specifications of your specialized projects.
Premium Galvanized Chains: Unlike standard black oxide chains, all our manual blocks come equipped with high-tensile galvanized load chains, offering exceptional resistance to rust and corrosion in damp or marine environments.
A slipping chain or a failing brake can lead to catastrophic workplace accidents. OTOY manual chain blocks feature highly reliable dual-pawl mechanical braking systems that instantly lock the load the moment the operator stops pulling the hand chain. We proudly manufacture our lifting tools to meet strict European and American safety standards, holding authoritative TÜV, CE, and ISO quality certifications. Furthermore, we stand behind our mechanical hoists with an industry-leading 7-year warranty and a risk-free 30-day money-back guarantee.
Common questions from our news readers and partners
A: Standard black chains are prone to rusting when exposed to outdoor weather or industrial moisture. Our high-tensile galvanized chains feature a protective zinc coating that provides superior rust and corrosion resistance. This significantly extends the lifespan of the chain block and prevents dangerous chain jamming in construction yards and marine applications.
A: Safety is our top priority. Our hand chain hoists utilize a highly reliable mechanical load brake system featuring dual pawls for redundancy. The friction brake automatically engages and holds the load securely in mid-air as soon as you stop pulling the hand chain, preventing any accidental dropping or slipping.
A: The HSZ series utilizes a traditional round casing, which is lightweight and highly efficient for general lifting. The DE Type features a reinforced "Four-Corner" square outer casing. This heavy-duty design offers superior impact protection for the internal gears and brake mechanisms, making it the ideal choice for extremely rugged job sites where the equipment might be dropped or bumped frequently.
