Waltco Liftgate BZ Series
The Waltco BZ Cantilever liftgate is a heavy-duty cantilever liftgate available in 3,300 lb and 4,400 lb capacities, designed for safe and efficient cargo loading and unloading.
It features a hydraulic lift and tilt system for controlled platform movement, supporting stable load handling when properly positioned and evenly distributed.

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Waltco BZ Cantilever Liftgate Overview
All about Waltco BZ Series Liftgate
The Waltco BZ liftgate model is designed for reliable cargo handling in medium- to heavy-duty applications. Built as a hydraulic cantilever lift system, it provides controlled raising, lowering, and tilting of the platform to support efficient loading and unloading operations.
Available in 3,300 lb (BZ-33) and 4,400 lb (BZ-44) capacities, the BZ series is engineered for evenly distributed loads positioned across the platform surface.
This makes it a practical solution for operators handling palletized freight, carts, or general cargo where stability and controlled movement are critical.
Key Features and Functional Design
Hydraulic Lift and Tilt Operation
The BZ series uses a hydraulic system with dedicated lift cylinders and tilt cylinders to control platform motion.
- Lift cylinders raise and lower the platform
- Tilt cylinders adjust platform angle for loading/unloading
- Controlled inputs allow simultaneous tilt and lift functions
This combination enables smooth transitions between ground level, bed height, and stored position.
Cantilever Platform Movement
As a cantilever liftgate, the platform moves outward and downward from the rear of the vehicle, providing clear access to the cargo area.
- Platform opens and closes through powered tilt functions
- Platform must maintain stable, level load positioning when lifting loads for stability
- Proper positioning of loads (centered and close to the vehicle) is required for safe operation
This design is well-suited for applications where dock access is limited or inconsistent.
Structural Components and Layout
The BZ liftgate includes several key components that support its operation:
- Platform
- Lift arms and mount tube
- Pump and motor assembly
- Lift and tilt cylinders
- Mount plates and frame connections
These components work together to provide consistent lifting performance and structural integrity during operation.
Installation and Fitment Considerations
Proper installation is critical to ensure safe and reliable performance. Find liftgate installation near you here.
Vehicle Compatibility
- Maximum frame width: 45-1/2 inches (Refer to OEM installation manual for exact frame and mounting dimensions)
- Mounting dimensions must match bed height and sill depth requirements
- Mount tube must be positioned below the chassis to allow proper bracket installation
Mounting Requirements
- Liftgate must be installed by a qualified technician
- Incorrect mounting dimensions can lead to improper operation or damage
- Up-stops are required to prevent over-travel of lift arms
These requirements ensure the liftgate operates smoothly and maintains proper clearances.
Operation and Safety Considerations
The Waltco BZ liftgate specs are designed specifically for cargo handling - proper operation is essential.
Safe Operating Practices
- Never exceed rated capacity
- Load must be centered and evenly distributed
- Keep hands and feet clear of moving components
- Do not operate if the liftgate shows signs of damage or uneven movement
Platform Control Functions
Operators can perform the following actions using control switches:
- Raise and lower platform
- Tilt platform up or down
- Open (deploy) and close (stow) the platform
The system may also include features like auto-tilt functionality depending on configuration.
Maintenance and Serviceability
Routine inspection and maintenance are essential for long-term performance.
Inspection Guidelines
- Check for cracked welds, loose fasteners, or structural deformation
- Inspect cylinders and hoses for leaks
- Ensure smooth operation through full lift cycle
Lubrication Requirements
- Multiple grease points require regular lubrication
- Frequency depends on usage cycles and duty level
OEM Parts Recommendation
Waltco specifies using original equipment replacement parts only, as non-OEM components may not meet safety or compatibility requirements.
Why Choose the Waltco BZ Cantilever Liftgate
The BZ series offers a balance of capacity, controlled hydraulic operation, and durable construction. Its cantilever design provides flexibility for a wide range of delivery and service applications, while its defined installation and maintenance guidelines support long-term reliability.
Frequently Asked Questions
1. What capacities are available for the Waltco BZ Cantilever liftgate?
The BZ series is available in 3,300 lb (BZ-33) and 4,400 lb (BZ-44) configurations.
2. What type of liftgate is the Waltco BZ?
It is a cantilever liftgate, meaning the platform extends outward and lowers to the ground using hydraulic lift and tilt functions.
5. What maintenance is required?
Regular inspection, lubrication of grease points, and checking hydraulic components for leaks or wear are required to maintain proper operation.

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