VMS Series Disc Brake Caliper
VMS3SPS Series Disc Brake Caliper
The Twiflex VMS3-SPS disc brake caliper is comprised of two modules bolted to a central mounting plate, 12mm thicker than the brake disc. Minimum disc thickness is 38mm and minimum disc diameter is 1500mm with no maximum except for practical limitations. Based on a development of the earlier Twiflex VMS2-SP disc brake, the VMS3-SPS provides a significant increase in braking force but in a similarly sized package.
Infinite fatigue life (>2 x 106 cycles) is achievable for most units at the 3mm air gap shown in the table and possible, by reducing this setting, for the higher rated brakes - contact Twiflex for further information.
Effective disc radius = actual radius (m) - 0.155m.
VMS2 Series Disc Brake Caliper
The Twiflex VMS2 disc brake caliper is comprised of two modules bolted to a central mounting plate, 12mm thicker than the brake disc. Minimum disc thickness is 38mm and minimum disc diameter is 1500mm with no maximum except for practical limitations.
Typically one or two calipers are used per disc, positioned at any angle around the periphery, but the number may be increased depending on disc size.
Effective disc radius = actual radius (m) - 0.155m.
VMSDP Series Disc Brake Caliper
Similar to the Twiflex VMS2 disc brake, the VMS-DP comprises 2 spring modules; this time mounted in a common housing to form the 'active' side of a floating brake caliper. This arrangement allows the assembly to accommodate ±10mm of axial disc movement.
Minimum disc diameter is 4500mm with no maximum except for practical limitations. Disc thickness for the standard caliper range from 117mm to 130mm with the mounting bracket being machined accordingly.
The VMS-DP is primarily intended to function as a holding brake, but may be used for a dynamic duty where spring life is not a consideration (for example, occasional emergency stopping).
Effective disc radius = actual radius (m) - 0.155m.
- On-site torque adjustment to precisely match application needs
- "park-off" facility for fast pad changing without special tools
- Spring-Applied - low pressure air release
- Controlled reversal of belt
- Automatic release of belt tension
- Stops in either direction
- "Spring-applied, hydraulically released modular disc brake can be used for aircraft platform lifts, ship deck equipment including hoists,winches and cranes
- Braking force is widely adjustable by means of shim packs which determine the total amount of spring compression
- Braking force On-site brake force adjustment to precisely match application needs "Park-off" position with springs in relaxed position to prevent accidental application, enable safe dis-assembly and removal facility, and facilitate fast pad changing without special tools
- Over 2,000,000 spring cycles possible
- Electronic monitoring including brake-on, brake-off, and pad wear"
