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YOXaz Hydraulic Coupling | Quick-Release Elastic Coupling with Brake Wheel, Torque-Limiting Hydraulic Coupling

A comprehensive explanation of the YOXaz hydraulic coupling, covering the breakdown of its national‑standard model designation, its dual‑integrated structure, the advantages of maintenance without machine relocation, and its four key features. Discover why this heavy‑duty device—combining quick disassembly with a brake wheel—is the ideal choice.

Product classification：

YOX limited moment type hydraulic coupling

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Product Details

I. Literal Breakdown of Model Designation Letters

Y : Hydraulic transmission
OX : External wheel drive, mineral oil medium Torque-limiting type Basic Series
A : Quick‑release, detachable design; output equipped with a split coupling featuring an elastic sleeve and pin.
z : Brake wheel (brake), integral cast steel brake hub at the output end Standard full name: Quick-release elastic coupling with brake wheel, torque-limiting hydraulic coupling Industry Abbreviation: Quick-Release Brake‑Type Hydraulic Coupler

II. Key Structural Features (YOXA + YOXⅡz, a Two-in-One Composite Type)

Dual-integrated structure Simultaneously possess A quick-release split coupling + z Integrated brake wheel Two major structural components: the input end features a flange directly connected to the motor, with an intermediate elastic pin coupling; the rear end incorporates an integrally cast brake wheel, enabling direct mounting of electromagnetic or block-type brakes.
No-Relocation Maintenance Design (Core Advantage) When repairing or replacing oil seals and fusible plugs, there is no need to move the motor or gearbox; simply remove the elastic pin bolts, shift the entire unit laterally toward the brake wheel side, and the coupling body can be lifted out separately, increasing maintenance efficiency by more than 60%.
Standard second-generation single‑stage unit with a conventional rear auxiliary chamber, featuring adjustable oil‑fill volume to control start-up speed; standard equipped with double‑layer nitrile oil‑resistant seals and a standard fusible plug for dual overload protection, with transmission efficiency ≥ 96%.
Brake wheel specifications can be customized to meet specific requirements; installation and alignment are straightforward, and the axial layout is compact, saving valuable equipment space.

III. Four Core Product Advantages

No-load soft start, protecting the power grid and the motor. The motor starts under near‑no‑load conditions, reducing inrush current by more than 60%; heavy‑load hoisting and conveying equipment can start without tripping, thereby minimizing motor winding losses.
Dual-layer security protection ① Stalled‑load material blockage: As oil temperature rises, the fusible plug melts, automatically disconnecting the power supply to prevent motor burnout and damage to the reducer gears. ② Emergency braking: An integrated brake wheel paired with a braking mechanism provides safe, emergency stopping, compliant with safety standards for lifting equipment.
Shock absorption and cushioning, reducing operation and maintenance costs. Liquid‑based flexible transmission absorbs start‑stop shocks, isolates torsional vibrations, significantly reduces wear on gearbox gears, bearings, and brake pads, and extends the service life of components.
Rapid maintenance to minimize downtime losses. For continuous production equipment in mines, power plants, and overhead conveyor systems, a single operator can quickly disassemble and reassemble components without removing the motor base, significantly reducing downtime.

IV. Equipment for Applicable Operating Conditions

Bridge and gantry cranes, mining belt conveyors, bucket elevators, boiler slag crushers, winches, tower cranes, heavy-duty sand‑making conveyor lines, and more. It requires both emergency braking and frequent maintenance. Heavy-duty equipment.

Main foundry business scope and capacity:

To cast 104-based aluminum alloy parts, HT150-250 cast iron parts, 45# steel-based various types of carbon steel castings. The production capacity of aluminum castings is 100 tons/month, and the production capacity of cast iron and steel parts is 100 tons/month. The company can provide customers with one-stop service of rough casting and processing. Mass production using die casting, small batch parts using sand casting.

Among them, cast steel (alloy steel) is the optimization and reorganization of the company's casting division and the original branch (Yunan Zhongxing Wear-resistant Materials Co., Ltd.) in 2023, fully combining the advantages of both parties, that is, the combination of technological innovation and mature management, aiming at common customer terminals, reducing marketing costs, and also allowing customers to obtain the convenience of one-stop after-sales service. The main products are related to electric power, mining, cement, ports, waterway dredging metal wear-resistant parts, product materials are metal matrix ceramic composite materials, high chromium, high manganese, alloy steel and so on.

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