The Maxon GPTWR series is a Tuk-A-Way® liftgate offered in four capacity configurations. Based on Maxon documentation, the GPTWR platform is defined by its 60" x 80" aluminum platform, walk ramp compatibility, recessed hinge design, bolt-on extension plate and steps, and standard features such as MAX GRIP®, cycle counter, and galvanized finish (Maxon GPTWR Spec Sheet, p. 1–2).
- Documentation Resources from Maxon
- Overview of the GPTWR Series
- Model Breakdown
- Key Specifications
- Platform Design Features
- Structural and Mechanical Features
- Standard Equipment
- Optional Features and Configurations
- Compliance and Certifications
- Installation & Fitment Considerations
- Summary of Configuration Flexibility
- Conclusion
Documentation Resources from Maxon
Information in this article is sourced from Maxon GPTWR manuals and technical guides. Always refer to your specific liftgate’s manuals for complete procedures and serial number, model, and year-specific details.
Reference PDFs used:
Overview of the GPTWR Series
The GPTWR is part of Maxon’s Tuk-A-Way® series and is identified in documentation as the walk-ramp-compatible version of the GPT family. The spec sheet lists the series as “Walk Ramp Ready” (Maxon GPTWR Spec Sheet, p. 1).
The Maxon GPTWR uses a consistent platform size and shared structural design across all models, supporting standardized installation and configuration across applications (Maxon GPTWR Spec Sheet, p. 1).
Model Breakdown
The GPTWR series includes four models:
- Maxon GPTWR-25 – 2,500 lb capacity
- Maxon GPTWR-3 – 3,000 lb capacity
- Maxon GPTWR-4 – 4,000 lb capacity
- Maxon GPTWR-5 – 5,000 lb capacity
These capacities are confirmed in both the spec sheet and operation manual (Maxon GPTWR Spec Sheet, p. 1; Maxon GPT & GPTWR Operation Manual, p. 6).
This range allows the tuck under liftgate platform to be selected based on load requirements while maintaining consistent design and dimensions.
Key Specifications
Platform Dimensions
All GPTWR models use a standardized:
- 60” x 80” platform (Maxon GPTWR Spec Sheet, p. 1)
Bed Height Range
The documented operating range is:
- 49” laden bed height
- 55” unladen bed height (Maxon GPTWR Spec Sheet, p. 1)
Overall Weight by Model
- GPTWR-25: 1105 lbs
- GPTWR-3: 1115 lbs
- GPTWR-4: 1130 lbs
- GPTWR-5: 1140 lbs (Maxon GPTWR Spec Sheet, p. 1)
These values reflect increasing structural requirements as capacity increases.
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Platform Design Features
Aluminum Platform Construction
The GPTWR platform is described as an extruded all-aluminum design, providing reduced weight compared to traditional steel platforms (Maxon GPTWR Spec Sheet, p. 1–2).
MAX GRIP® Surface
The platform includes a knurled MAX GRIP® surface to improve traction (Maxon GPTWR Spec Sheet, p. 2).
Recessed Hinge Design
A recessed hinge configuration provides a flat loading surface across the entire platform width, minimizing interference during loading (Maxon GPTWR Spec Sheet, p. 1–2).
Platform Components
The operation manual identifies key structural liftgate components, including:
- Platform
- Flipover
- Extension plate
- Walk ramp (GPTWR only)
- Lift arms and parallel arms (Maxon GPT & GPTWR Operation Manual, p. 7)
These components define the mechanical layout of the tuckaway liftgate platform.
Structural and Mechanical Features
Torsion Spring System
The Maxon GPTWR platform includes dual assist torsion springs to reduce opening and closing effort (Maxon GPTWR Spec Sheet, p. 2).
Hydraulic System
The liftgate uses a hydraulic system consisting of:
- Lift cylinders
- Pump assembly
- Hydraulic lines and components (Maxon GPT & GPTWR Operation Manual, p. 7)
Power Down and Power Tilt
- Power down capability
- Power tilt functionality (Maxon GPTWR Spec Sheet, p. 1–2)
These features are part of the standard system configuration.
Standard Equipment
The GPTWR series includes the following standard features:
- Galvanized finish
- Hydraulic lock valve
- Greasable pins with zerk fittings on all major pivot points
- Cycle counter
- Extruded aluminum platform
- Recessed platform hinge
- Bolt-on step and extension plate
- Dock bumper options (rubber or plastic)
- MAX GRIP® surface (Maxon GPTWR Spec Sheet, p. 2)
The galvanized coating is specifically described as a corrosion-resistant protective process applied to metal components (Maxon GPTWR Spec Sheet, p. 2).
Optional Features and Configurations
Cart Stops
The GPTWR can be configured with:
- Single cart stops
- Dual cart stops
These are designed to prevent carts from rolling off the platform (Maxon GPT & GPTWR Operation Manual, p. 27).
Electrical and Control Options
Optional control configurations include:
- Handheld remote
- Cab cutoff switch
- MAX ECU® (Maxon GPTWR Spec Sheet, p. 2)
Additional Configurations
Other available options include:
- Bolt-on dock bumpers with light cutouts
- Flexible cable steps
- Flashing lights
- Max On-Lok® (dock lock compatibility) (Maxon GPTWR Spec Sheet, p. 2)
Extension Plate Design
The GPTWR includes a bolt-on extension plate and step system, which is noted to simplify installation and reduce corrosion compared to welded configurations (Maxon GPTWR Spec Sheet, p. 2).
Compliance and Certifications
The GPTWR documentation states that the liftgate:
- Meets underride impact certifications (CMVSS & FMVSS)
- Offers FMVSS and CMVSS-certified underride configurations (Maxon GPTWR Spec Sheet, p. 1–2)
These references relate to rear impact guard and underride protection requirements.
Installation & Fitment Considerations
The spec sheet states that proper installation requires reviewing the installation manual for:
- Vehicle compatibility
- Body requirements
- Mounting specifications (Maxon GPTWR Spec Sheet, p. 1)
The operation manual also identifies key structural components—such as the main frame, lift arms, and platform assemblies—that must be correctly installed for proper function (Maxon GPT & GPTWR Operation Manual, p. 7).
Correct fitment ensures that the tuckunder liftgate operates within its intended design parameters.
Summary of Configuration Flexibility
The Maxon GPTWR series provides a consistent platform design across multiple capacity ratings while offering configurable features and options.
Key configurable elements include:
- Capacity selection (2,500–5,000 lbs)
- Cart stop configurations
- Electrical control options
- Dock bumpers and lighting
- Underride configurations
- Walk-ramp-compatible setups (Maxon GPTWR Spec Sheet, p. 1–2)
This flexibility allows the tuck under liftgate for sale to be adapted to different vehicles and application requirements while maintaining standardized components.
Conclusion
The Maxon GPTWR series combines standardized platform dimensions, multiple capacity options, and documented structural features into a consistent tuck-away liftgate configuration.
For help with liftgate parts or selecting a tuck under liftgate for sale, contact our Team at LiftGateMe.
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