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Frequently Asked Questions

How do I choose between Type I, Type II, and Type III?

The choice depends mainly on brake disc diameter and required braking torque:
Type I: 315–500 mm, 320–1,750 N·m
Type II: 450–710 mm, 1,025–7,310 N·m
Type III: 630–1,250 mm, 3,750–19,650 N·m

What is the most important parameter when selecting a brake?

Brake disc diameter is often overlooked. Confirm the disc diameter and mounting center height first, then select the brake based on the required torque.

How much safety margin is needed for braking torque?

For lifting applications, a safety margin of at least 1.5 times the rated torque is recommended. For traveling applications, a smaller margin may be sufficient. Selecting a brake without sufficient torque margin may cause braking failure under heavy loads.

Can a YPZ2 brake replace my existing brake directly?

Check three factors: brake disc diameter, DIN 15435 mounting dimensions, and actuator supply voltage. If all three match, direct replacement is generally possible.

Can Type II and Type III brakes with the same disc diameter be interchanged?

Not necessarily. Different types have different frame sizes and actuator thrust ratings. For example, a 630 mm disc can be used with both Type II and Type III, but their torque ranges and actuator specifications differ. The correct type should be selected based on the actual load and braking requirements.

What are the advantages of disc brakes over drum brakes for high-frequency braking?

Disc brakes dissipate heat more efficiently, reducing the risk of heat fade during frequent or continuous braking. The YPZ2 uses an Ed actuator with an aluminum alloy housing, making it suitable for applications with thousands of start-stop cycles per day and supporting longer service life.

How quickly does the brake respond after power failure?

The YPZ2 uses a normally closed design. When power is lost, the spring immediately applies the brake without waiting for hydraulic activation, providing fast and reliable braking for emergency safety applications.

Does braking torque decrease as the brake pads wear?

No. The YPZ2 is equipped with an automatic wear compensation device that compensates for pad wear and maintains a consistent retraction distance and braking torque, reducing the need for frequent manual adjustments.

Can the brake pads wear unevenly on both sides?

The YPZ2 features an equal retraction mechanism that keeps the retraction distance of both brake shoes consistent. This helps prevent uneven pad wear caused by one side remaining in contact with the brake disc.

Will braking torque become unstable after long-term use?

The brake springs are enclosed in sealed spring tubes to protect them from dust and oil. A visual torque scale allows easy torque calibration, while self-lubricating bearings at the hinge points help maintain stable transmission performance without frequent lubrication.

What standards does the YPZ2 comply with?

The YPZ2 complies with the German DIN 15435 standard and JB/T 7020-2006. Its mounting dimensions are compatible with internationally recognized industrial brake standards.

What operating environments is the YPZ2 suitable for?

The standard model is suitable for ambient temperatures from -20°C to +50°C, altitudes up to 2,000 m, and environments free of flammable or explosive gases and conductive dust. For low-temperature applications, aviation hydraulic oil or an optional heater is required.

Is an explosion-proof version available?

Yes. The standard model is not suitable for flammable or explosive environments. Explosion-proof actuators and brake configurations are available for applications such as coal mines and chemical plants.

Is the YPZ2 suitable for coastal or corrosive environments?

A corrosion-resistant version is recommended for these applications. The standard model is not designed for highly corrosive gases, while the corrosion-resistant version can withstand salt spray, acid spray, and similar conditions.

Can the gasket be replaced without disassembling the brake?

Yes. The gasket uses a plug-in design, so there is no need to remove the brake arm or disassemble the entire unit. Replacement can be completed quickly by one person, helping minimize downtime.

What routine maintenance is required?

Routine maintenance mainly includes three checks: gasket wear, retraction distance, and actuator hydraulic oil level. Replace the gasket when it reaches its wear limit and change the hydraulic oil every six months.

Does Xuda offer non-standard customization?

Yes. Custom options include non-standard voltage or frequency, corrosion-resistant versions, manual release devices, gate opening/closing limit switches, gasket wear limit switches, and other configurations.

What is the lead time and warranty period?

Standard specifications are typically in stock or available with a short lead time. The warranty period is one year. During the warranty period, defects or damage not caused by improper use can be repaired or replaced. Gaskets, actuators, and other spare parts are also available for long-term supply.