The Maxon BMR column liftgate is part of Maxon’s Columnlift series and is offered in multiple capacities and platform configurations. The available BMR models are BMR-35, BMR-44, BMR-55, and BMR-66, with rated capacities from 3,500 lbs to 6,600 lbs (Maxon-BMR-Spec-Sheet.pdf, p. 1; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 6).
This article focuses on the BMR’s published features, configurations, and technical specifications only.
- Documentation Resources from Maxon
- Capacity Range and Models
- Capacity Structure Across the Line
- Platform Configurations
- Bed Height Range
- Ramp Configurations
- Cart Stop Options
- Structural and Design Features
- Hydraulic and Power System
- Key Features and Options
- Conclusion
Documentation Resources from Maxon
Information in this article is sourced from Maxon BMR manuals, technical guides, and our team's expertise. Always refer to your specific liftgate’s manuals for complete procedures and serial number, model, and year-specific details.
Reference PDFs used:
Capacity Range and Models
The Maxon BMR column liftgate is available in four model designations:
- BMR-35
- BMR-44
- BMR-55
- BMR-66
These models correspond to the following rated lifting capacities:
- BMR-35 – 3,500 lbs
- BMR-44 – 4,400 lbs
- BMR-55 – 5,500 lbs
- BMR-66 – 6,600 lbs
These ratings are shown in both the spec sheet and the operation manual’s warning section (Maxon-BMR-Spec-Sheet.pdf, p. 1; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 6).
Capacity Structure Across the Line
The BMR lineup uses the same general product family structure while scaling rated lifting capacity across the four models. The spec sheet lists the same major platform configuration families across the BMR-35 through BMR-66 models, showing that buyers can choose from a common set of layout options while selecting the capacity that fits their equipment requirements (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The BMR series is published in four capacity classes, from 3,500 lbs to 6,600 lbs. That model structure gives the line a clear capacity progression while keeping the product within the same BMR family (Maxon-BMR-Spec-Sheet.pdf, p. 1; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 6).
Platform Configurations
Platform Sizes
The BMR spec sheet lists several platform size configurations, including:
- 60” x 85”
- 72” x 85”
- 84” x 85”
The sheet also identifies split dimensions within those platform widths, including 30”+30”, 36”+36”, 42”+42”, 36”+24”, and 42”+30”, depending on the selected configuration (Maxon-BMR-Spec-Sheet.pdf, p. 1).
Steel, Grated Steel, and Aluminum Platforms
The BMR is shown with multiple platform material categories in the spec sheet:
- Steel platforms
- Grated steel platforms
- Aluminum platforms
Those categories are published separately, with their own approximate weights by size and configuration (Maxon-BMR-Spec-Sheet.pdf, p. 1).
Weight Differences by Platform Material
The published approximate weights vary significantly by platform material. For example, with a 16” aluminum retention ramp, a 72” x 85” BMR-35 steel platform is listed at approximately 2,079 lbs, while the comparable aluminum platform is listed at approximately 1,573 lbs. A grated steel version in that same size is listed at approximately 2,019 lbs (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The same pattern appears across the other model capacities, with aluminum platforms consistently lighter than steel platform versions in the published tables (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The BMR platform offering is broad, with multiple platform widths, split layouts, and material choices. The published weight tables show that platform material has a meaningful effect on approximate liftgate weight (Maxon-BMR-Spec-Sheet.pdf, p. 1).
Bed Height Range
Published Bed Height Limits
The BMR spec sheet lists a bed height range of 44” minimum to 56” maximum across the published platform configurations (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The installation manual states the same basic operating range, noting a maximum operating bed height of 56” unloaded and a minimum of 44” loaded (Maxon-BMR-Installation-Manual-rev-J-2024.pdf, p. 8).
The installation manual’s clearance diagrams also repeat the 56” maximum bed height dimension (Maxon-BMR-Installation-Manual-rev-J-2024.pdf, p. 10).
Mounting Reference Dimensions
The spec sheet’s lift dimension graphic also shows related mounting reference dimensions, including 77.5” and 18.1”, along with 13” with mount plate and 12-1/2” without mount plate (Maxon-BMR-Spec-Sheet.pdf, p. 1). These are published as part of the BMR lift dimensions and mounting requirements illustration.
The BMR’s published bed height range is 44” to 56”, and that range is repeated across the spec sheet and installation manual. Maxon also publishes mounting reference dimensions alongside that height range (Maxon-BMR-Spec-Sheet.pdf, p. 1; Maxon-BMR-Installation-Manual-rev-J-2024.pdf, pp. 8, 10).
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Ramp Configurations
16” Aluminum Retention Ramp
The spec sheet lists configurations “With 16” Aluminum Retention Ramp (ARR)” across steel, grated steel, and aluminum platform groupings (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The operation manual shows the retention ramp as a separate movable ramp section with a lock mechanism that is pulled to release the ramp before rotating it into position (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 17).
12” Fixed Ramp Option
The BMR spec sheet also lists 'With 12” Fixed Ramp' as a separate configuration category for published model and weight combinations (Maxon-BMR-Spec-Sheet.pdf, p. 1).
Retention Ramp Mechanism
Maxon highlights a “New Retention Ramp Mechanism” on the spec sheet and states that it is designed to make the ramp easier to lock and unlock while keeping it tightly stowed during transit (Maxon-BMR-Spec-Sheet.pdf, p. 2).
The operation manual also illustrates the ramp in stowed, ramp, and retention positions, confirming that the ramp mechanism supports multiple positions depending on use (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 17, 22, 26).
The BMR is published with both a 16” aluminum retention ramp configuration and a 12” fixed ramp configuration. The retention ramp setup includes a locking mechanism and multiple ramp positions shown in the operation manual (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 17, 22, 26).
Cart Stop Options
Published Cart Stop Choices
The BMR spec sheet lists configurations with a dual cart stop and with an automatic cart stop, identified as ACS (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The second page of the spec sheet also shows loadable platform space diagrams for single/dual cart stop and automatic cart stop layouts (Maxon-BMR-Spec-Sheet.pdf, p. 2).
Single, Dual, and Automatic Cart Stops
The operation manual states that some liftgates are equipped with single or dual cart stops, and that cart stops prevent loaded carts from rolling off the outboard end of the platform (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 28).
It also explains that a single cart stop is one section, while dual cart stops are two identical sections operated independently with separate controls (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 28).
The operation manual separately includes a section for auto cart stops, confirming that automatic cart stop configurations are part of the BMR platform options (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 31, table of contents p. 4).
The BMR platform can be configured with cart stop options that include single, dual, and automatic arrangements. Maxon’s documentation also distinguishes between manual dual-section cart stop setups and ACS configurations (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 28, 31).
Structural and Design Features
Column Lift Design
The BMR is identified by Maxon as part of its Columnlift series, and the product is visually and dimensionally built around two vertical columns with runners that guide the platform (Maxon-BMR-Spec-Sheet.pdf, p. 1; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 12).
Platform and Column-Related Components
The operation manual and maintenance manual reference several structural elements that define the BMR design, including:
- Columns
- Runners
- Platform chains
- Platform openers / opener arms
- Extension plate
- Retention ramp
These components appear in the daily operation checks, stowing illustrations, and maintenance procedures (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 8–10, 26–27; Maxon-BMR-Maintenance-Manual-rev-D-2024.pdf, pp. 15–16).
Additional Published Design Features
The spec sheet lists several design features, including:
- New optional bolt-on design
- New platform opening / closing mechanism
- New column impact guard
- Mechanical platform adjustment
- New chain anchor position
- Flashing platform lights
- MAX GRIP® and cycle counter standard
- Galvanized finish standard (Maxon-BMR-Spec-Sheet.pdf, p. 1)
The BMR’s documented design centers on a dual-column lifting structure with runners, platform chains, and a rear-mounted platform assembly. Maxon also publishes several updated design features tied to the current BMR generation (Maxon-BMR-Spec-Sheet.pdf, p. 1; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 8–10, 26–27).
Hydraulic and Power System
Pump Box Design
The operation manual identifies the pump box and explains that the master select switch applies or removes battery power from the pump or pumps (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 14).
For a single pump box, the master select switch is turned to 1 to operate the liftgate. If the liftgate is equipped with a dual pump box, the switch can be used to connect battery power to pump 1 or pump 2 (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 14).
Pump and Battery Box Mounting
The spec sheet states that the pump and battery box are mounted on a galvanized bolt-on hanger frame (Maxon-BMR-Spec-Sheet.pdf, p. 2).
It also states that hydraulic components are mounted on a vertical plate to make the components more accessible for service (Maxon-BMR-Spec-Sheet.pdf, p. 2).
Electrical and Diagnostic Features
Maxon also highlights a new pump box / hydraulic design / LED controller. The spec sheet says the controller quick diagnostic built-in LEDs serve as function indicators (Maxon-BMR-Spec-Sheet.pdf, p. 2).
The maintenance manual includes a controller indications section with input and output LED indicators, which supports that diagnostic description (Maxon-BMR-Maintenance-Manual-rev-D-2024.pdf, p. 57).
Power Down and Battery-Related Features
The spec sheet lists “Power Down on Demand” as a feature and as an optional feature (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2). The operation manual shows optional power-down controls at both the column switch and runner switch (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, p. 13).
The spec sheet also lists a new battery box option with a built-in DC/DC converter and resettable circuit breaker (Maxon-BMR-Spec-Sheet.pdf, p. 1).
The BMR documentation shows a pump box and battery system built around accessible controls, selectable pump power, and LED-based diagnostic indication. Optional power down and battery box configurations are also part of the published product offering (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 13–14; Maxon-BMR-Spec-Sheet.pdf, pp. 1–2; Maxon-BMR-Maintenance-Manual-rev-D-2024.pdf, p. 57).
Key Features and Options
Bolt-On Design
The spec sheet lists a new optional bolt-on design and states that this design reduces overall gate depth by 1.75 inches (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2).
Rollers vs Slide Pads
Maxon states on the spec sheet that the BMR is available with rollers or slide pads (Maxon-BMR-Spec-Sheet.pdf, p. 2).
The maintenance manual also includes separate runner replacement references for tandem rollers and tandem slide pad assemblies, which support the availability of both runner interface types (Maxon-BMR-Maintenance-Manual-rev-D-2024.pdf, pp. 40, 47).
Control Location and Power Down on Demand
The spec sheet identifies a new switch location and states that the control switch is located on the column and can include an optional power down on demand button (Maxon-BMR-Spec-Sheet.pdf, p. 2).
The operation manual’s control location pages match that description by showing the column switch and optional power down controls (Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 12–13).
Pump Box and Diagnostics
The spec sheet highlights a new pump box / hydraulic design / LED controller, including accessible hydraulic components and built-in function indicators (Maxon-BMR-Spec-Sheet.pdf, p. 2).
Retention Ramp and Galvanized Finish
Maxon also highlights the new retention ramp mechanism and states that the fully galvanized finish is standard (Maxon-BMR-Spec-Sheet.pdf, p. 2). The first page of the spec sheet also lists galvanized finish as standard among the published features (Maxon-BMR-Spec-Sheet.pdf, p. 1).
Other Published Features
Other features specifically listed by Maxon include:
- Flashing platform lights
- MAX GRIP® standard
- Cycle counter standard
- Column impact guard
- Mechanical platform adjustment
- Header kit option
- Dome light option
- Auxiliary control option
- Hand-held control option
- Conspicuity tape option
- Pressure gauge option (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2)
The BMR feature list combines standard construction details and optional upgrades, with published highlights that include bolt-on mounting, rollers or slide pads, optional power down, updated switch placement, and standard galvanizing (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 12–14).
Conclusion
The Maxon BMR column liftgate is published as a configurable Columnlift-series model with four rated capacities, multiple platform materials, several ramp and cart stop configurations, and a range of standard and optional design features (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2).
The documentation also shows that the product line includes choices such as steel, grated steel, or aluminum platforms, optional bolt-on mounting, rollers or slide pads, and optional power down controls (Maxon-BMR-Spec-Sheet.pdf, pp. 1–2; Maxon-BMR-Operation-Manual-rev-C-2024.pdf, pp. 12–14).
For buyers researching Maxon BMR parts or comparing heavy-duty column liftgate configurations, the BMR documentation shows a product line built around flexible platform layouts, standardized published capacities, and updated hydraulic, control, and mounting features.
For help with liftgate parts or selecting a column liftgate for sale, contact our Team at LiftGateMe at parts@liftgateme.com or by calling (774) 266-8892.
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