Precision
Door Closers ZHUTAO.
High-end hydraulic door closers and stopper hardware. The ZHUTAO Series A introduces commercial-grade backcheck buffers, 90° hold-open configurations, adjustable closing forces, and delayed action valves. Built with die-cast aluminum alloy housings and precision alloy steel pistons to stand the test of time.
ZHUTAO Heavy Closer Systems
Standard, Concealed, Sliding Slide-Track & Arm Accessories
Bespoke Adjustments
Configure closing/latching speeds, custom decorative slide-rail covers, non-standard mounting plates, and premium finishes including Ti-Gold, Mirror Polish, Satin Stainless, or Matte Black.
OEM Mold Integration
High-efficiency production molds for B2B global hardware distributors. Support includes custom branding laser engraving, specialized arm length variants, and eco-friendly packaging.
Consolidated B2B Trade
Direct factory margins, mixed order container consolidations, and standardized protective master cartons certified to endure international freight shipments.
Advanced Controls & Safety Functions
90° Hold-Open
The door can keep standstill automatically when fully opened at 90°, perfect for high-traffic corridors.
Continuous Speed Adj.
Dual independent valves allow the fastest closing in 5 seconds from 90°, or slow closing above 40 seconds.
Backcheck Buffer
Creates fluid resistance above 65° to avoid slamming into walls when kicked or pushed with excessive force.
Delayed Closing
Delays closing between 180° - 65° for up to 20 seconds, allowing safe passage for elderly and disabled individuals.
Technical Resource Center
Acquire millimeter-precise installation templates, mounting angles, and adjustable valve schematics for the entire ZHUTAO Closer catalog.
Engineering Assets
Request DXF / DWG CAD Templates
Gain absolute precision for door frame prep. Contact our design office to receive detailed .dwg cut paths and drilling hole sizes for hidden series (BM-A-1000/1200).
Contact Project EngineeringCore Door Closer Component Specs
Select a core model below to review detailed CAD-standard layouts, closing parameters, and compatibility specs extracted directly from the engineering files.
Select Hardware Component
BM-A-800 Details
Technical Specifications
- Power Level / Capacity: Power Level 2# / Up to 45Kg
- Max Door Width: ≤ 950 mm
- Installation Layout: Scissor Standard Joint Mount
- Adjustable Valves: Independent Speed & Latch
- Body Core Design: Die-Cast Aluminum / Steel Gear
Full System Component Directory
Every accessory type and closer system from the ZHUTAO catalog. Engineered with premium alloys and advanced fluid seals.
1. Standard Scissor-Arm Door Closers
Standard Closer (Power Size 2#)
Perfect for residential interior doors. Supports widths up to 950mm and weights up to 45kg.
Standard Closer (Power Size 3#)
Optimized for light commercial spaces. Handles widths up to 1000mm and weights up to 65kg.
Heavy-Duty Closer (Power Size 4#)
Heavy-duty build for main entrances. Manages door widths up to 1200mm and weights up to 85kg.
Super Heavy-Duty (Power Size 5#)
Maximum capacity closer. Supports wide doors up to 1300mm and weights up to 100-180kg.
Compact Architectural Closer (3#)
Elegant slimline design. Compatible with interior wood and hollow-metal doors up to 65kg.
Compact Architectural Closer (4#)
Slim-body heavy-capacity closer. Engineered for office perimeter doors up to 85kg.
2. Slide-Rail / Sliding Track Closers
Track-Arm Closer (Power Size 3#)
Features a modern, linear slide arm instead of a projecting scissor joint. Supports doors up to 65kg.
Deco-Cover Track Closer
Equipped with a sleek, full-length decorative metal cover shell to completely conceal screws and gaskets.
Low-Resistance Sliding Track Closer
Engineered with high-grade needle bearings to minimize opening resistance for children and the elderly.
Track-Arm Closer (Power Size 4#)
High-power sliding rail closer designed for commercial building office doors up to 85kg.
Standard Closer with Slide Track
Double-speed control body (BM-A-802) adapted to a modular flat-sliding rail mechanism.
Heavy Slider Track Closer (4#)
Commercial layout closer with high-strength structural piston. Supports door weights up to 85kg.
3. Concealed / Hidden Door Closers
Concealed Closer (3#)
Embedded inside the top door leaf. Provides an invisible aesthetic. Supports up to 65kg.
Concealed Closer with Stop
Embedded hidden closer featuring an integrated stop valve to limit maximum swing range.
Heavy Concealed Closer
Higher structural capacity concealed closer. Designed for architectural hotel doors up to 65-85kg.
Super Concealed Closer (5#)
Ultimate hidden closer. Built with wide-body castings to support heavy wood or steel entry doors up to 100kg.
4. Precision Arms, Brackets & Stopper Accessories
Mounting Brackets & Precision Parts
Soffit Bracket
Parallel Bracket
Drop Plate Angle
Doorcase Adaptor
Hold-Open Bracket
Heavy Joint Stud
Precision Closing Arm Assemblies
Standard Push Arm
Main arm: 230mm. Adjustable forearm: 215-305mm. Solid carbon steel construction.
Globe Joint Arm
Main arm: 235mm. Forearm: 215-335mm. Ball-joint linkage to minimize friction.
B2 Drawing Steel Arm
Main arm: 250mm. Forearm: 230-315mm. Specially treated high-torque flat profile steel.
Locating Support Arm
Main arm: 250mm. Forearm: 270mm. Holds swing parameters at precise target limits.
Subuliform Arm System
Main arm: 230mm. Forearm: 215-305mm. Tapered shaft connection to eliminate play.
B1 Drawing Steel Arm
Main arm: 250mm. Forearm: 210-295mm. High tensile strength cold-drawn steel link.
B3 Drawing Steel Arm
Main arm: 300mm. Forearm: 220-290mm. Longer profile maximizes leverage for heavy gates.
Hidden Arm Joint
Main arm: 330mm. Forearm: 460mm. Integrates with the concealed 1000/1200 series.
Technical Parameter Sheet
Cross-reference table showing dimensions, weight ratings, compatibility scopes, and accessories for the ZHUTAO Series A.
Rigorous Performance Testing
ZHUTAO Series A closers undergo demanding factory stress evaluations to guarantee consistent dampening and hydraulic fluid longevity.
Global Wholesale Parameters
Standard batch orders complete in 15-25 business days. Bespoke finishes or customized castings require additional mold-tuning cycles.
MOQ starting at 200 units per model category for custom logo laser-etching on closer bodies and custom-branded boxes.
5-Year mechanical structure and soft-close hydraulic warranty under normal high-frequency commercial or public sliding usage.