Shock Mitigation Seat Rail System

A BETTER RAIL SYSTEM FOR MOUNTING SHOCK MITIGATION SEATS

This system is specifically designed for the marine environment, giving you a flexible cockpit layout with fast, hassle-free reconfiguration. We tested this system over 20 kN (25 kN for the 27mm rail) to meet HSC regulations.

How Does it Work? 

Seats are mounted on four trolleys that run on parallel rails. Two of the trolleys have pinstops that fit into the holes in the rails. Two trolleys are free sliding. To adjust the trolley location, simply raise the two pinstops and slide to a new location.

Trolley Design

  • Strong – tested to over 20 kN (25 kN for the 27mm rail)
  • Adaptable – can be fitted to dive tank racks, weapons racks, deck boxes etc.
  • Compact – minimum intrusion on cockpit sole
  • Black hardcoat-anodized; maximum corrosion resistance

Rail Design

  • High strength 6061-T6 aluminum low-profile rail
  • Hardcoat-anodized for maximum protection
  • Pinstop holes for maximum flexibility in seat spacing
  • Countersunk fasteners for flush fitting
  • Underside of rail recess for mastic sealant

RT delrin insulating sliders

 

Delrin® Insulating Sliders

No metal-to-metal contact
No lubrication required
Low friction
Smooth movement
Minimum rattle

RT delrin insulating sliders 2

 

Spring Mounted Pinstops

Secure seat location
Quick and easy adjustment

RT end stops

 

Pinstops

Removable pinstop end allows seats to come off rail

RT end stops 2

 

Endstops

Low-profile endstop for smooth, snag-free end

Installation and Maintenance

Flush clean with fresh water and mild detergent. To reduce friction further, use McLube® high-performance dry lubricant. Do not use oils or greases. For added protection against corrosion, Harken Industrial recommends using Tef-Gel® corrosion eliminator on the fasteners when installing the rail.

The Shock Mitigation Seat Rail System should only be installed by a competent person or organization in order to meet the requirements of HSC regulations.

All rails listed are designed to use stainless steel fasteners. Attachment to the vessel must be in accordance with HSC regulations. Harken Industrial does not recommend installing with aluminium fasteners. Use of non- stainless-steel fasteners is at the liability of the installer and must be designed to meet the requirements of HSC regulations.

Always use thread locking solution or locknuts. Precise rail alignment at joints is critical for smooth-running cars.

Rail & Accessories

Part
No.
Description Length Mounting Hole spacing* Fasteners Endstop Trim Cap Splice Link
ft/in mm in mm in mm
22 mm
2751.600MM Low-beam pinstop metric rail 1′ 11 5/8″ 0.6 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.1M Low-beam pinstop metric rail 3′ 3 3/8″ 1 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.1.5M Low-beam pinstop metric rail 4′ 11 1/16″ 1.5 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.2M Low-beam pinstop metric rail 6′ 6 3/4″ 2 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2751.3.6M Low-beam pinstop metric rail 11’ 9 3/4” 3.6 3 15/16 100 #10 FH 5 FH 263/E2200 2722 2724
2722 Trim cap set
E2200 Endstop set
27 mm
R27.1M Low-beam pinstop metric rail 3′ 3 3/8″ 1 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.1.2M Low-beam pinstop metric rail 3’ 11 1/4″ 1.2 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.1.5M Low-beam pinstop metric rail 4’ 11 1/16” 1.5 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.1.8M Low-beam pinstop metric rail 5’ 10 13/16” 1.8 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.2M Low-beam pinstop metric rail 6′ 6 3/4″ 2 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.2.5M Low-beam pinstop metric rail 8′ 2 7/16″ 2.5 3 15/16 100 5/16 FH 8 FH 1621 1619
R27.3M Low-beam pinstop metric rail 9′ 10 1/16″ 3 3 15/16 100 5/16 FH 8 FH 1621 1619
1621 Trim cap set
E2700 Endstop set

*First mounting hole distance from end of track: 50 mm (1 31/32″).

Trolleys

Part
No.
Description Length Width Weight Fits
Rail
in mm in mm lb g
22 mm
IN120 22 mm slider car with pinstop without bail 3.3 84 1.29 33 0.208 94.68 2751
IN121 22 mm slider car only 3.3 84 1.29 33 0.208 94.68 2751
27 mm
IN152 Slider utility trolley with 3 x M8 holes 5 127 1 5/8 42 0.51 233 R27
IN153 Slider pinstop utility trolley with 3 x M8 holes 5 127 1 5/8 42 0.54 246 R27

McLube is a registered trademark of McGee Industries.
Tef-Gel is a registered trademark of Ultra Safety Systems, Inc.
Delrin is a registered trademark of E.I. du Pont de Nemoursand Company or its affiliates.

 

RIB Seat Track case study