1. Installation Methods
YLZ series hydraulic wheel brakes adopt horizontal wheel-side clamping installation as standard, vertical customized brackets are available for special vehicle and wheel set layouts. The unit is widely matched with industrial wheel sets of port trolleys, stackers, mining transport vehicles and rail carriages.
Standard Horizontal Wheel-side Mounting
Fix the brake base rigidly to the vehicle frame or wheel bogie via high-strength anti-loose bolts. Align the two friction blocks symmetrically with both side surfaces of the wheel hub friction ring to guarantee full and uniform contact.
Install the hydraulic cylinder horizontally on the caliper body. Ensure the piston push rod moves parallel to the wheel friction surface without deflection to deliver balanced clamping force during hydraulic pressurization.
Keep the entire caliper perpendicular to the wheel friction ring; avoid inclined installation which causes partial abrasion, overheating and braking force attenuation.
Reserve enough operating space around the wheel hub for friction block replacement, clearance adjustment and cylinder routine inspection.
Optional Custom Vertical Installation
Applicable to compact bogies with narrow horizontal layout. Custom vertical transition brackets are required for assembly. After installation, check cylinder reset spring flexibility and piston stroke to prevent incomplete release or insufficient clamping force.
Key Installation Requirements
All sliding guide structures are fitted with maintenance-free self-lubricating sleeves, no frequent greasing needed.
Completely clear mud, oil, rust and dust on the wheel friction ring before commissioning; grease contamination will drastically reduce friction coefficient and braking safety.
Adjust the unilateral gap between friction block and wheel ring through built-in fine-tuning screws; standard clearance range: 0.5–1.2 mm per side.
Working principle: Supply hydraulic oil to the cylinder for pressurization, pushing friction blocks to clamp the wheel and realize service braking; cut off hydraulic pressure, reset springs pull the blocks apart to release the wheel. For parking brake versions, integrated spring energy storage cylinders are optional for fail-safe static locking.
Arrange hydraulic pipelines without sharp bends; filter units must be equipped in the oil circuit to block impurities and avoid cylinder jamming.
2. Standard Matching Accessories
Core Functional Supporting Components
Hydraulic Clamping CylinderSpecial driving cylinder matched for YLZ brakes, converting hydraulic pressure into linear clamping thrust. Energy storage spring cylinders are supplied as options for fail-safe parking braking.
High-pressure Hydraulic Pipeline & Quick ConnectorsConnect the main hydraulic station and brake cylinder to transmit pressure oil stably.
Position Limit SwitchesDetect fully-clamped braking state and fully-released running state, send real-time feedback signals to the vehicle control system for interlock protection and fault alarm.
Manual Bleed ValveUsed for exhausting air inside the hydraulic cylinder during installation and maintenance to eliminate soft braking response.
Consumable Spare Parts
Quick-replace wheel friction blocksHigh-friction wear-resistant friction blocks with bolt fixing structure; single-side replacement without disassembling the whole brake caliper. Semi-metallic high-performance blocks are optional for heavy-load frequent braking vehicles.
Adjustment & Fastener KitIncluding gap adjusting screws, spring preload lock nuts, anti-loose bolts and sliding guide sleeves for regular parameter calibration.
Hydraulic Cylinder Sealing Repair KitComposed of piston oil seals, dust-proof gaskets and O-rings, for periodic replacement to solve oil leakage faults.
3. Optional Custom Accessories
Explosion-proof hydraulic cylinders and Ex-certified limit switches for underground mining vehicles and chemical transport equipment.
Custom transition brackets dedicated to vertical wheel-side installation layout.
Dust, mud and splash-proof protective covers for outdoor port, mine and construction transport vehicles.
Anti-corrosion coated brake caliper and stainless steel fasteners for coastal salt-fog and humid operating environments.
Hydraulic buffer components to lower braking impact, vibration and noise for passenger transport and precision handling equipment.
Hand hydraulic pump assembly for manual emergency braking when the main hydraulic station fails.
