Multi-Function Gorilla Spike Puller/Anchor Spreader

New or Rebuilt & Upgraded Railway Spike Pulling/Anchor Spreading Machine

MODELS GSP-MF  |  GSP-MF-RBUG

An Innovative Multi-Function Machine That Pulls Spikes and Spreads Anchors Sequentially.

MOW Equipment Multi-Function Gorilla Spike Puller/Anchor Spreader
MOW Equipment Multi-Function Gorilla Spike Puller/Anchor Spreader

Get two machines in one with our multi-function spike puller. The highly productive dual-function workhead can keep the same pace as a single-function workhead, deliver increased productivity and improve quality. 

The GSP-MF can either pull spikes, spread anchors, or perform both functions sequentially, in the same amount of time as a standard spike puller.

Our advanced CAN-BUS control system offers quick, easy adjustments at your fingertips, without leaving the comfort of the cab. Run the machine using the single-button automated cycle or keep it in manual mode, the choice is yours. 

Reduce your acquisition costs, work time, daily maintenance, mobilization costs, and future capital overhaul expenses with two machines in one. 

Machine Benefits

  • Two machines in one. Pull spikes, spread anchors, or do both sequentially in the same time as a standard spike puller. 
  • Increase productivity and ensure long-term performance with the heavy-duty workhead.
  • Make precise, instant workhead adjustments from the operator seat.
  • Reduce switching costs.
  • Troubleshoot and diagnose in the field or the shop with our intuitive control system and troubleshooting features.
  • Eliminate wasted movement.
  • Increase time in service, decrease downtime, and shed hours of manual troubleshooting.

New, Rebuilt, Upgrade, and Custom Options

Not all maintenance tasks are the same. They often require customized MOW equipment to do the job right.

We work with Class I’s, contractors, short lines, transits and mines. Our experienced team understands how MOW equipment is made, how it works, and how it’s used, so we can help you determine the best solution for your track maintenance needs.

You have the option to: 

  • Upgrade an existing machine with a more powerful, durable workhead.
  • Upgrade to a custom workhead retrofitted for an existing platform.
  • Purchase a new or custom machine.


We deliver solutions that: 

  • Extend the life of your railway repair equipment.
  • Reduce maintenance costs.
  • Increase efficiency and improve safety.

Standard Features:

  • Heavy-duty welded steel frame
  • Positive locking, rail-to-rail turntable 
  • Front & rear tow hitch
  • John Deere, Cat or Cummins diesel engine
  • 60-gallon fuel tank
  • 4-wheel, dual-axle drive, hydraulic motor, chain & sprocket drive
  • Solid pillow block bearings supported by 3-inch diameter axles
  • 16-inch diameter, hub-mounted, cast-steel wheels
  • Spring-applied, hydraulic-released brakes – Cobra-style brake shoes
  • PLC-based CAN-BUS control system
  • 24VDC, circuit-breaker-protected electrical system
  • On-screen diagnostics/troubleshooting information & machine health status indicators
  • On-screen operator adjustments for workheads
  • Touch controls for claw arm pattern, set height, ready height, lockups deadman/service brake mode
  • 98-gallon hydraulic reservoir 
  • Single pressure-compensated Danfoss hydraulic pump
  • Vickers hydraulic manifolds
  • Pressure & return line filtration
  • Manual emergency hydraulic pump
  • Thermostatically-controlled hydraulic oil cooler
  • 2 man, heavy-duty, fully-enclosed steel cab with left & right doors 
  • Air conditioner / heater & pressurizer
  • Safety glass, gray tinted
  • Front (upper & lower) and rear wipers
  • Integrated work, travel, brake & strobe lights – all LED
  • Travel alarm, switchable travel direction via switch on master control panel
  • Bi-directional electric horns

General Dimensions:

Weight 21,500 lbs.
Length 19' 10"
Height 8' 6"
Wheelbase 108"
Travel Speed 22mph – max

Workhead/Mechanical Features:

  • Heavy-duty spike-pulling workheads capable of pulling spikes, lags and/or Lewis bolts
  • Hydraulic claw arm patterning from the operator seat 
  • Hydraulically-actuated, dual raise/lower links 
  • Hydraulic upper & lower lockups
  • Integrated spreader assembly that quickly deploys to move plates with the tie in place
  • Spreading options are selectable: all forward, all back, and split forward/back with plate re-centering option

Intuitive Control System

The leading control system we install in every new or rebuilt machine makes it so much easier to operate, troubleshoot, and diagnose your equipment – whether out in the field or in the shop. Upgrade your maintenance-of-way machine with a state-of-the-art control system that:

  • Allows for quick and precise adjustments to the workhead right from the comfort of the cab.
  • Provides instant key feedback about your machine to the operator or mechanic.
  • Sheds hours of guesswork and diagnosis with its troubleshooting features.

  • Features rugged, durable components in order to ensure endurance in the tough environment of railroad track maintenance.
  • Expedites and improves equipment maintenance and repair.
  • Helps increase productivity and profit.

Parts in Stock Ready to Ship

We are your one-stop shop for quality maintenance of way parts and customized shop kits for machine maintenance and repair. 

Outstanding Service and Aftermarket Support

Our Field Service Technicians are out on the job performing commissioning, training, and troubleshooting support. They can also help diagnose issues over the phone. 

Get a Copy of our Parts Catalog!

Our MOW Parts Catalog is regularly updated with more premium parts that are in stock and ready to ship! Parts for your spike driver, spike puller, tie exchanger, rail lifter, and much more. 

Parts Catalog Request