Cabin Systems: Mechlok

Brand Expertise: P.L. PORTER

Cabin Systems: Mechlok

Brand Expertise: P.L. PORTER

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Mechlok Mechanical Seat Recline Devices

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The rugged, durable Mechlok is an ideal mechanical lock for applications that require high reliability. The system stands up to the toughest usage conditions with minimal maintenance to deliver significant cost savings over the product life cycle.

These single mechanical locks have one maximum stroke setting that can lock at any position within the travel range and have positive locking capabilities in both directions. There are many sizes and strokes to suit all applications, with an upper axial load of 2,000 lbs.

Mechloks are available in a clamshell or a tubular design. The Mechlok is all-steel construction and available in a variety of finishes.


  • Infinite stroke adjustment
  • Linear positioning mechanical lock
  • Up to 2,000 lbs axial load
  • Positive locking in both directions
  • Compact packaging
  • Inline or offset mounting
  • Clamshell or tubular designs
  • Remote actuation
  • Sizes and strokes to suit most applications
  • Available with spring output force

Markets | Applications

airplane cabin


  • Main cabin seating
  • Pilot and crew seats
  • Storage bins
  • Crew rest modules
  • Elevator and door actuation
steering wheel


  • Seat recline
  • Steering column fit
massage chair

Health and Wellness

  • Orthopedic, chiropractic and therapy tables
  • Wheelchairs
  • Dental chairs
  • Cardio and weight machines
office chairs

Office Equipment

  • Chair recline, seat tilt, fore and aft tracking
  • Arm rest adjustment
  • Ergonomic adjustments
  • Adjustable work surfaces


  • Passenger rail
  • Charter / VIP and public buses
  • Ferries

Machine and process applications for set-up, changeovers and maintenance procedures

Performance Specification

  Clamshell Design Tubular Design
Friction Force* 4-8 in./lbs 4-8 in./lbs
Nominal Operating Load 200 lbs 200 lbs
Axial Load 1,200 lbs 2,000 lbs
Mounting Length Range† 6.0 - 18.0 in. 6.0 - 18.0 in.
Output Force 50 - 160 lbs 50 - 160 lbs
Min Compression Load* 1,000 lbs 700 lbs
Max Compression Load* 3,000 lbs 4,250 lbs
Min Tensile Load* 3,400 lbs 2,600 lbs
Max Tensile Load* 3,600 lbs 4,500 lbs
Lever Actuation Load 4 - 5 lbs 5 - 7 lbs
* Forces and loads vary according to customer specifications.