Boosted Master Cylinders

For Machinery Requiring Higher pressures

ZF Boosted Master Cylinders are used on machinery that require higher pressure than typically provided by master cylinders or two-stage master cylinders. 

The same dependability and performance that goes into every MICO braking system product also goes into our versatile, high-performance off-highway boosted master cylinders.

 

Designed specifically for heavy duty off-highway applicationsRemote reservoir for ease of monitoring master cylinder fluidProduct designs for brake fluid and hydraulic oil75+ years manufacturing master cylinders
 

 

Boosted Straight Bore 
Boosted Master Cylinders

The single piston straight bore type master cylinder has been proving its usefulness since the early 1930's and is still in extensive use. 

 

Provides natural pedal "feel" through hydraulic reaction

Completely hydraulic - no vacuum or air assist required

 

> Contact Us

Stem Seal Type
Boosted Stright Bore Master Cylinders

By eliminating the equalizing port normally found on master cylinders, this cylinder offers simplicity, ease of bleeding and versatility. The lack of compensation port allows the cylinder to be used in a broad range of applications indiscriminative of volumetric output.

 

Provides natural pedal "feel" through hydraulic reaction

Completely hydraulic - no vacuum or air assist required

May be used for spring brake applications

Easy to bleed

 

> Contact Us

Boosted Tandem Straight Bore Master Cylinders
Stem Seal Type

By eliminating the equalizing port normally found on master cylinders, this cylinder offers simplicity, ease of bleeding and versatility. The lack of compensation port allows the cylinder to be used in a broad range of applications indiscriminative of volumetric output.

 

Provides natural pedal "feel" through hydraulic reaction

Two independent master cylinders and reservoir ports in a common housing

Provides braking in the event either the front or rear brakes become inoperative

Completely hydraulic - no vacuum or air assist required

Uses a remote fluid reservoir for ease of monitoring fluid level

 

> Contact Us

Boosted Two-Stage
Boosted Master Cylinders

 

Provides natural pedal "feel" through hydraulic reaction

Completely hydraulic - no vacuum or air assist required

Provides high brake system pressure in the event of inadequate booster pressure

 

> Contact Us

Boosted Dual Master Cylinders
Intented for Bake Systems with Brake Assisted Steering

The ZF Boosted Dual Master Cylinder is used to Modulate output pressures up to 1500 PSI. This is used in conjunction with properly sized brakes using mineral base oils and booster oil from a standby pressure source such as that of a transmission. This unique integrated design can easily adapt to many dual systems to provide steering assist power braking with one pedal applied or full power braking with both pedals applied giving equally balanced brake pressure.

 

Power-off braking through master cylinder

Open center spool construction provides smooth brake modulation at all pressures

Direct acting pistons provide pedal "feel" accurately representing brake pressures

Balance piston seals fluid loss from one master cylinder side should the opposite side brake line become severed

Reduced pedal force during steering assist braking

 

> Contact Us

Boosted Open Center
Boosted Master Cylinders

The ZF Open Center Master Cylinder, also called Open Center Valve, permits the addition of a power braking system to vehicles which are equipped with other hydraulic power devices such as power steering or implements.

Elminates the need of a separate power brake unit

Provides natural pedal "feel" through hydraulic reaction

Pressure in the brake system can be double that of the main hydraulic system

Full hydraulic flow and pressure are retained for downstream components, except for the small volume required to displace brake cylinder pistons during brake applications

 

> Contact Us

 

 

Hydraulic Power Brake Actuator
Boosted Master Cylinder

The compact size Hydraulic Power Brake Actuator is designed for use with vehicles that are equipped with an open center hydraulic system that can supply 0.7 to 4 GPM at 335 PSI to obtain the set brake limit pressure. It can be operated manually through the booster during power-off conditions. 

ZF Hydraulic Power Brake Actuator combines a hydraulically boosted power section with a master cylinder section in a single unit. This valve uses mineral based hydraulic oil in both the booster and master cylinder sections. The master cylinder section is separate from the booster portion so an alternative fluid such as transmission oil can be used for the brakes.  

> Contact Us

Custom Engineered
Master Cylinders

ZF custom engineers products for specific applications that meets or exceeds customer specific requirements. Contact a ZF Off-Highway Braking Solutions representative for your custom solution today.

 

> Contact Us

 

Related Product Information

Download PDF file
Application Data Sheet - Brake Cylinders (Form Number 80-001-026)

This sheet is used for Master Cylinder, Remote Actuator, Two Fluid Actuator, Air/Hydraulic Actuator, and Pressure Intensifier applications.

ZF uses application data sheets to collect machine and/or vehicle information specific to an application. They are also helpful for understanding the environment and manner in which the machine/vehicle will be operated. Our Engineering Department uses application data sheet information to select suitable brake components that are designed to meet your application needs.

ZF holds this information in strict confidence. Your machine/vehicle information is strictly for application assistance and will not be sold or shared with anyone outside of ZF.
Download PDF file
Boosted Master Cylinders Catalog (Form Number 84-460-007)

This 24-page catalog contains a detailed explanation of how the boosted master cylinders operate. Individual sections of this catalog include features, specifications, sectional, and dimensional drawings.
Download PDF file
ZF Off-Highway Product Guide (Form Number 80-950-006)

This is our introductory catalog for ZF Off-Highway Solutions Minnesota Inc. products. It provides product photos and brief descriptions of the product portfolio offerings in brakes, brake actuation, valves, and controls.