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YP31A-630X30-ED1250-60 Electro-hydraulic Disc Brakes
YP31A-630X30-ED1250-60 Electro-hydraulic Disc Brakes YP31A : YP31A heavy-duty double-caliper electro-hydraulic arm-type disc brake series (A=improved upgraded version) 630 : Matched brake disc diameter: Φ630 mm 30 : Effective thickness of brake disc: 30 mm ED1250-60 : Fitted with ED-series...
Description
YP31A-630X30-ED1250-60 Electro-hydraulic Disc Brakes
YP31A: YP31A heavy-duty double-caliper electro-hydraulic arm-type disc brake series (A=improved upgraded version)
630: Matched brake disc diameter: Φ630 mm
30: Effective thickness of brake disc: 30 mm
ED1250-60: Fitted with ED-series electro-hydraulic thruster;
1250: Rated thrust:1250 kgf(≈12258 N)
60: Rated piston stroke:60 mm
Products Description
2. Working Principle (Normally Closed Fail-Safe Design)
Classic spring-applied fail-safe structure, complying with JB/T7020-2006 & DIN15435 standard:
Power-off / Parking Braking: Main compression springs drive two brake calipers to clamp the Φ630×30 brake disc tightly, output fixed braking torque for equipment stop and anti-slip protection; auto emergency locking during sudden power failure.
Power-on / Brake Release: ED1250-60 thruster energizes, piston extends to overcome spring preload, push brake arms open two friction pads away from disc, disc rotates freely without friction drag.
Built-in automatic pad wear compensation & equal clearance device, keeps consistent brake gap automatically in long-term operation.
3. Core Technical Parameters
表格
| Item | Specification |
|---|---|
| Matching brake disc | Φ630mm × 30mm |
| Equipped thruster | ED1250-60, AC380V/50Hz(60Hz optional), IP55, F insulation class |
| Rated braking torque | 3800~7200 N·m (stepless adjustable via spring preload scale) |
| Working ambient | -20℃~+50℃, relative humidity ≤90%, altitude＜2000m |
| Duty cycle | S3 intermittent 60% standard, max 1000 cycles/h |
| Friction lining | Non-asbestos composite pad (optional semi-metallic/powder metallurgy for heavy-load high temp) |
| Closing response time | 0.3~0.4s |
4. Structural & Product Advantages
Auto equal clearance + wear compensation: Patent structure maintains uniform pad retreat distance on both sides, no frequent manual gap adjustment, prevents unilateral liner abrasion or drag friction.
Self-lubricating bushings for all hinge pivots: Zero regular grease maintenance, high transmission efficiency.
Plug-in snap-type brake pads: Quick replacement without disassembling brake frame, cut maintenance downtime largely.
Optional limit switches: Release limit, closed brake limit, pad wear limit to transmit interlock signal to host PLC for safety monitoring.
Heavy-duty cast steel frame, anti-corrosion surface coating, stable performance under dusty, damp mine/port harsh conditions.
5. Typical Application Range
- Portal/gantry crane trolley & luffing mechanism service & parking braking
- Port bulk cargo loading/unloading machinery, ship unloader rotating & travelling brake
- Mine large belt conveyor head/tail wheel safety brake, heavy metallurgy transmission equipment deceleration lock
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