Storm Brakes - Rail Clamps
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Storm Brakes - Rail Clamps
SBC075 Sill Beam Mounted Rail Clamp
75,000 LB (333 kN) Holding Force

Designs include from 1 to 150 kips (667 kN) 		Storm Brakes - Rail Clamps
Mounting Styles Available
- Sill-Beam (as shown left)
- Flange (Direct Mount)
- Truck End

Spring-set Compact Rail Clamps
- Hydraulic Release
- Air Pressure Release
- Manual Release
- Electric release
- Electric Set / Electric Release
- Manual Set & Release

 

Applications for Dynamic and Static Rail Clamps:

  •  CRANES
  •  SHIP LOADERS/UNLOADERS
  •  CONVEYOR TRIPPERS
  •  STACKER - RECLAIMERS
  •  OTHER RAIL MOUNTED EQUIPMENT
 Storm Brakes - Rail Clamps
STC025 25,000 LB [111kN] Holding Force


Storm Brakes - Rail Clamps
STG050 50,000 LB [222kN] Holding Force (special Rail GCR-108)
Features
  •  MECHANISM
  •  - free-floating / self-centering 
     - horizontal float standard 
     - vertical & rocker float optional 
     - guide rollers optional

  •  ACTUATION
  •  - Spring-set(standard)
     - flow control standard (for delayed set) 
     - limit switch standard (for release interlock)
     - Pnuematic (Air), Hydraulic, Electric or Manual


  •  CONSTRUCTION
  •  - steel & ductile iron 
     - serrated shoes (static) 
     - smooth shoes (dynamic) 
     - stainless steel pins standard

  •  CONFIGURATION
  •  - single port or flow through actuator
     - 12,500 LB [56kN] to 150,000 LB [667kN]
       (see table)
     - Rail Clamps manufactured for all rail sizes
     - Custom Rails and Rail sizes


  •  SHOES
  •   - hardened & serrated tool steel for maximum holding
      - smooth shoes for dynamic service


  •  OPTIONS
  •  - special alloys, coatings, controls and custom
     - mountings available

  •  ENGINEERING
  •  - application and selection assistance available
     - commisioning, field inspection, training & supervision available
Typical Hydraulic Rail Clamp
Basic Design includes Manual Release
Rail Clamp Selection
The rail clamp must be chosen according to exposed surface areas of structures and maximum wind speed in addition to a suitable safety factor. For more complicated structures please consult Johnson Industries and we will calculate and recommend the correct rail-clamp for your application.
Serrated Tool Steel Shoes are standard
for rail brakes and rail clamps

Smooth Shoes are Optional, for Dynamic Stopping
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Rail Clamp Model Data
 
MODEL MOUNTING HOLDING
FORCE		 RELEASE
PRESSURE		 MOUNTING
BOLTS (Dia.)		 WEIGHT    
  LB (kN) PSI (BAR) Grade 5 In. (mm) lb (kg)
SBC012
STC012
SFC012		 Sill Beam
Truck End
Flange		 12,500
(56)		 1000
(69)		 0.625
(16)		 440 (200)
390 (177)
260 (118)
SBC025
STC025
SFC025		 Sill Beam
Truck End
Flange		 25,000
(111)		 1200
(82)		 0.75
(20)		 580 (264)
440 (200)
340 (155)
SBC050
STC050
SFC050		 Sill Beam
Truck End
Flange		 50,000
(222)		 1200
(82)		 1.00
(24)		 960 (436)
850 (386)
560 (255)
SBC075
STC075
SFC075		 Sill Beam
Truck End
Flange		 75,000
(333)		 1200
(82)		 1.125
(27.5)		 1480 (673)
1330 (605)
870 (395)
SBC100
STC100
SFC100		 Sill Beam
Truck End
Flange		 100,000
(444)		 1200
(82)		 1.25
(30)		 2200 (1000)
1980 (900)
1290 (586)
SBC150
STC150
SFC150		 Sill Beam
Truck End
Flange		 150,000
(667)		 1200
(82)		 1.50
(38)		 3600 (1636)
2650 (1200)
1800 (818)
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Storm Brakes - Rail Clamps
        Customized STL050 truck end mounted Rail Clamp
        50,000 lb (222 kN) holding force, complete with
        guide rollers to keep machinery from moving horizontally.
Storm Brakes - Rail Clamps

        Standard STC025 truck end mounted Rail Clamp
        25,000 lb (111 kN) holding force.
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