Tailgate Installation - Philippi-Hagenbuch, Inc.
Our Beloved Pat Hagenbuch 1942 - 2021

Tailgate Installation

Installation of the PHIL Autogate Tailgate can be handled in one of three ways:

  • Tailgate to Body Installation at PHIL factory in Peoria, IL
  • Field Installation with PHIL Supervisory Assistance
  • Self Installation by client or dealer

For installations taking place away from the PHIL factory, the following items are needed:

  • Two (2) qualified welders
  • One (1) helper to assist with the installation
  • 4 or 5 chains at least 10 ft long (10 to 20 ft preferred)
  • Lifting device capable of lifting 2 tons
  • Two, one (1) ton or larger come-alongs
  • Safe ladders, man-lifts or scaffolding
  • Two (2) hand winches (1 ton or larger)
  • A loader or crane with operator for intermittent use (in assembling gate and lifting it into position on truck)
  • Misc. hand tools and blocking
  • Dry, low hydrogen E70XX iron powder coated welding rods (or comparable wire)
  • Material as indicated on installation drawings for the fabrication of a basic installation tool (provided with installation manual prior to shipment of Autogate Tailgate)
  • Touch-up paint as needed

Approximate Installation Time:

Articulated Tailgate: 35 - 50 man hours +/-
Series II / Max Load Tailgate: 40 - 55 man hours +/-
Standard Rigid-Frame Tailgate: 45 - 60 man hours +/-
Outriggerless Tailgate: 45 - 60 man hours +/-
Ultra-High Tailgate: 45 - 60 man hours +/-


Approximate Installation Time for Options:

Set of Sideboards: 20 - 25 man hours +/-
Fluidic Seal Assembly: 15 - 20 man hours +/-
Cushion Pad Assembly:            15 - 20 man hours +/-


The time required to install an Autogate Tailgate will be directly related to each organization, the number and skill set of people involved, options choosen, and familiarity with PHIL Autogate® tailgate installations. As with any product, if someone on the installation team has installed a tailgate before, the installation often goes more smoothly and quickly than when a team that has not installed a tailgate before is assigned the task. For this reason, Philippi-Hagenbuch, Inc. strongly encourages anyone that has not installed a tailgate for several years to accept our Installation Assistance service.


PHIL set the industry standard in tailgate design since we introduced the first off-highway Autogate Tailgate to the industry in 1969. Today, we’ve produced more than 10,000 tailgates for both articulated and rigid frame off-highway trucks - from 20 ton to 340 ton in size.

Each fast-opening, fast-acting Autogate Tailgate provides increased payloads, decreased material spillage, improved loading and a balanced load distribution. And, we use a unique, high-strength chain that’s stronger than any commercially available standard chain and oversized gate pivot pins to provide maximum durability.

Whether you’re hauling dirt, sand, gravel, shot rock, coal, oil sands or soupy material, the PHIL Autogate Tailgate keeps material in your truck bed no matter what the condition.

How Does An Autogate Tailgate Increase Your Truck Payload and Productivity?

Without a tailgate, isolated components such as the front suspension, front axle, hoist mechanism, and steering equipment may be overburdened. While attempting to prevent spillage, operators may pile the load forward in the truck bed causing damage to the canopies, overload to the front tires, and side spillage. By closing the rear of the truck, tailgates provide a bigger loading target helping the loader operator distribute the load evenly from the front to the rear of the truck so weight distribution improves.

With the truck bed closed, you’ll also realize a volumetric capacity increase of up to 20%, depending on the material hauled.

A direct benefit of tailgates is the elimination of rear-end spillage. When a non-tailgated truck shifts gears on an incline or turns a corner, materials can be lost over the sides or out the rear leading to tire damage. Our Autogate Tailgate reduces side and rear-end spillage by keeping the “rocks-in-the-box”. Drivers steer with ease through clutter-free loading and haulage areas.

Operation of our Autogate Tailgate is simple and trouble-free. No lock, cylinders or controls to malfunction. The body dumps, the Autogate Tailgate opens.

Tailgate Capacity Chart


April 18-20, 1977

Learn about the operational benefits of tailgates and how they can help improve your haul truck efficiency.



Aggregates Manager Magazine
February 2015

Learn how adding a tailgate to your haul truck can boost



Get all the latest PHIL news and updates.

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PHIL Autogate® Tailgates typically provide 10% to 20% additional volumetric capacity. Do the math below to see how adding tailgates to your fleet will impact your bottom line, with no additional trucks or labor.

Additional Information


Faster, More Efficient Loading is the goal. An example whould be a 40 ton capacity haul truck that is being loaded with 4 passes. With a tailgate extending the truck bed length to 17' 5" the loader size can be increased from 7 yards to 12.5 yards, allowing one less pass plus more load while containing the load within the bed.

Rear End Spillage

Half of the time spent on haul roads is for cleaning; the other half is maintaining - so cut your time in half and save by keeping the load in the body with tailgates.

Tire Costs

The hours in a Manufacturers Performance Book show expected tire life of 10,000 hours. Where cleaner haul roads are present, hours jump to 12,000, or a 40% increase in tire life. What type of tire life are you achieving? Is it less than 12,000 hours? Less than 10,000 hours? What have you tried to decrease tire damage and increase tire life? Tailgates help!

Background Info


Rated Capacity

Loads Per Day Per Truck Value
Current Tons Per Day Per Truck Value
Loads Per Day Per Fleet Value
Current Tons Per Day Per Fleet Value
Current Tons Per Week Per Fleet Value
Increase in Tons Per Truck Per Day @ 10% additional volume Value
Increase in Tons Per Fleet Per Day Value
Projected Tons Per Day Per Fleet Value
Projected Tons Per Week Per Fleet Value
Increase in Tons Per Week Value
* Increase equates to the following number of truck-days of production Value


Gallons of Fuel Used / Day by Fleet Hauling 32 Tons / Load Value
Cost of Fuel Used / Day by Fleet Value
Cost of Fuel Per Ton Hauled Value
Gallons of Fuel Used / Day by Fleet Hauling 32 Tons / Load Value
Cost of Fuel Used / Day by Fleet Value
Cost of Fuel Used / Week by Fleet Value
Cost of Fuel Per Ton Hauled (based on 40 Ton Loads) Value