Product code: UCR-BR-070

Caliper & Wheel Cylinder Test Benches

Brake System Testing

Caliper & Wheel Cylinder Test Benches – UNITIS

Information and quotation request

Just mention the product code in your request. Sharing specimen details and the test specification speeds things up.

About the system

Caliper and wheel cylinder test benches cover sealing, stiffness, fluid consumption, piston rollback, drag torque and EPB clamp force tests on hydraulic and air disc calipers and wheel cylinders. Performance benches apply up to 60 MPa (70 MPa with booster); durability benches are multi-station with a −40…150 °C environment.

Technical scope

  • Hydraulic & air calipers, wheel cylinders
  • Up to 60 MPa
  • Vacuum <100 Pa
  • Drag torque, stiffness, EPB clamp
  • −40…150 °C

Test functions and capabilities

  • Sealing at low, high and ultra-low pressure
  • Fluid consumption (P-V) curve
  • Caliper stiffness and piston rollback
  • Piston starting pressure and sliding force
  • Drag torque and EPB clamp force
  • Vacuum filling (<100 Pa abs)
  • Multi-station hot/cold durability

Configurations and technical data

ConfigurationTechnical values
Sealing bench2 kW; low 0–1 MPa; high 1–20 MPa; ultra-low 9.8–100 kPa; 0–5 MPa/s
Durability bench2 kW; 0–20 MPa; 0–20 MPa/s; 1000±100 cycles/h
Fluid consumption (P-V) bench3 kW; 0–20 MPa; 0–1 MPa; 0.002–4.0 L/min; 0–100 mm
Stiffness & rollback bench3 kW; 0–25 MPa; 0–5 mm / 0–2 mm; 0.5–2 MPa/s
Piston starting pressure bench3 kW; 0–20 MPa; 0–5 / 0–2 mm; 0.5–2 MPa/s; 0–120 mm/min; 0–1000 N
Hydraulic caliper performance0–1 / 0–25 / 0–60 MPa (70 MPa with booster); vacuum <100 Pa; 0–100 rpm; stiffness 0–5 mm
Hydraulic caliper durability0–25 MPa; >25 MPa/s; −40…150 °C; multi-station
Air disc caliper0.05–1.6 MPa

Values show the range of available configurations. Final technical values are defined by the project specification.

Project scope

  • Joint definition of the technical specification
  • Configuration and layout proposal
  • Installation, commissioning and acceptance tests
  • Operator training and after-sales technical support