The Midland Haldex SC20 is a Type 20 standard-stroke service brake chamber with a 2.25-inch (57mm) available stroke. The steel pressure housing is powder coated and features resistance-welded air ports threaded 3/8-18 NPTF. Maximum rated air pressure is 150 psi. Key dimensions include an A-dimension of 4.0 inches (102mm), a clampband diameter of 8.6 inches (218mm), an E stud spacing of 4.75 inches (120.7mm) on 5/8-11 UNC studs, and a J pushrod length of 10.20 inches from the face of the service housing with 5/8-18 UNF pushrod threads. The service housing is 12-gauge steel, powder coated for corrosion resistance. The built-in Orange Alert stroke indicator gives a visible warning when stroke is out of adjustment. Call us to confirm proper fit for your application.
A = Length from mounting bracket to end of service housing: 4.0" (102mm)
D = Dimension at service clampband: 8.6" (218mm)
E = Stud spacing: 4.75" (120.7mm) with 5/8-11 UNC studs
J = Pushrod length from face of service housing: 10.20"; pushrod threads are 5/8-18 UNF
K = Distance to clevis pin centerline from face of service housing
S1 = Service clampband position: 0°
T = Air port position: 90°
A factory handling fee of $25.00 per order is added at checkout.
Features
Type 20 standard stroke service chamber, 2.25" (57mm) available stroke
Steel pressure housing, powder coated with resistance-welded 3/8-18 NPTF air ports
12-gauge steel service housing with step bottom, powder coated for corrosion resistance
Orange Alert stroke indicator for visible out-of-adjustment warning
Self-piloting dust shield included
Maximum air pressure: 150 psi; high-flexibility diaphragm rated to -40°F
Tech Specs
- Actuator Type Size: 20
- Stroke Type: Standard
- Available Stroke: 2.25" (57mm)
- A - Length from mounting bracket: 4.0" (102mm)
- D - Dimension at Service Clampband: 8.6" (218mm)
- E - Stud Spacing: 4.75" (120.7mm), 5/8-11 UNC studs
- J - Pushrod length from face of Service Housing: 10.20", 5/8-18 UNF pushrod threads
- K - Distance to Clevis Pin centerline from face of Service Housing
- T - Air Port position: 90°
- S1 - Service Clampband position: 0°
- Air Port Threads: 3/8-18 NPTF
- Maximum Air Pressure: 150 psi
- Quantity: 1
Additional Information
Dimension reference guide for SC20:A = Length from mounting bracket to end of service housing: 4.0" (102mm)
D = Dimension at service clampband: 8.6" (218mm)
E = Stud spacing: 4.75" (120.7mm) with 5/8-11 UNC studs
J = Pushrod length from face of service housing: 10.20"; pushrod threads are 5/8-18 UNF
K = Distance to clevis pin centerline from face of service housing
S1 = Service clampband position: 0°
T = Air port position: 90°
