ASI Drives MARK 500 Single-Stage Transaxle Review: Specs, Price and Applications
Updated: 4 days ago
ASI Drives MARK 500 is a heavy-duty electric transaxle with single-stage reduction. It provides a defined enclosed axle package with PMDC or brushless motor options and optional braking for battery-powered mobile machinery.
Quick Verdict
MARK 500 is a candidate when its approximately 19:1 reduction and mechanical layout match the machine. Its single-stage architecture should be evaluated around the complete tractive operating point and wheel loading. Compare it with a more configurable-ratio or two-stage alternative if the vehicle requires a different speed and force balance.
ASI Drives MARK 500 Single-Stage Transaxle at a Glance
Specification | Details |
Architecture | Heavy-duty single-stage enclosed transaxle |
Reduction ratio | 19.2:1 in the features table; descriptive text rounds to 19:1 |
Published track width | 567.7 mm; custom widths available |
Supply selection | 24–36 VDC |
Motor choices | 4-pole PMDC; brushless DC option |
PMDC peak-efficiency example | 31 Nm at 108 rpm; 348 W output |
BLDC peak-efficiency example | 31 Nm at 172 rpm; 560 W output |
Options | Power-off electromagnetic brake; connectors; cover; optional IP67 conformity |
Design and Engineering Assessment
A nearly fixed reduction places particular importance on motor speed and wheel diameter. Those choices determine whether the vehicle reaches its travel speed without pushing the motor outside its useful torque-speed region. A ratio that suits one wheel size may not suit a larger wheel on the same chassis.
The published PMDC and BLDC examples share one torque value at their peak-efficiency points but operate at different speeds and powers. That does not make either example the universal rating of the gearbox or motor. Compare the complete selected curve and thermal duty with the vehicle requirement.
Single-stage construction can be mechanically attractive, but gear stage count alone does not determine installed efficiency or service life. Bearings, seals, lubricant, alignment, operating speed and load all contribute. Use measured vehicle energy consumption and supplier qualification data for the actual configuration.
Track width and axle-end details should be settled early because they influence wheel placement, chassis clearance and bearing moments. A custom-width assembly can simplify the chassis while creating a distinct replacement part; record the exact definition for procurement and maintenance.
Matching the Single-Stage Reduction
Calculate the axle speed at maximum vehicle speed and the torque required at the worst grade. Then verify acceleration and sustained low-speed duty at the lowest expected battery voltage. This prevents a design that reaches top speed only with inadequate grade capability.
Compare alternative motor windings and wheel diameters before assuming that a larger controller solves a mismatch. Higher current can increase heating and may not address a voltage-limited speed requirement.
Wheel Loads and Repeated Use
Evaluate the wheel offset, payload distribution and shock environment. Threshold crossings and uneven surfaces can impose axle and bearing loads unrelated to the average propulsion torque. Qualify the complete wheel connection under representative use.
Inspect attachment hardware and cable restraint after repeated direction reversals. A drivetrain can perform electrically while mounting or connector details degrade under the mechanical duty of a mobile machine.
Brake, Controller and Environmental Options
Choose the controller for the actual PMDC or BLDC motor and required feedback. Define acceleration, deceleration and fault response as vehicle behaviors, then verify them under load instead of relying on nominal drive settings.
Order the brake and environmental package explicitly. Holding a stationary vehicle on a grade and absorbing motion during a stop are different requirements; the selected brake and electrical braking arrangement must each be used within their documented role.
Applications and Selection
Heavy-duty floor-care, material-handling and other mobile equipment whose wheel speed, axle load and chassis interface suit a single-stage transaxle.
For ASI Drives MARK 500 Single-Stage Transaxle, define the actual machine duty before selecting an ordering configuration. Include the required operating point, available installation space, environment and control interfaces. The specification table describes the product or family; the surrounding machine determines which of those features matters for the intended job.
Price and Value
Price: Request a quote for the exact configuration. Compare the product, compatible control equipment, required mechanical parts, cabling and commissioning as one installed system. A component price alone does not represent the cost of a working automation axis.
Evaluate an alternative against the same duty and acceptance criteria. Match the continuous operating requirement first, then compare transient capability, feedback, mechanical fit and support. This avoids choosing between superficially similar products whose ratings describe different operating conditions.
Pros and Cons
Advantages
Enclosed transaxle combines reduction and axle packaging
Motor and brake options support configuration around the vehicle duty
Defined mechanical interface can reduce separate drivetrain assembly work
Limitations
Published example points do not establish a universal continuous rating
Wheel load, braking and environmental suitability need vehicle-level qualification
Motor type, dimensions and accessories must be specified in the order
Who Should Consider ASI Drives MARK 500 Single-Stage Transaxle?
Consider ASI Drives MARK 500 Single-Stage Transaxle for heavy-duty floor-care, material-handling and other mobile equipment whose wheel speed, axle load and chassis interface suit a single-stage transaxle. Establish the required operating point and installation interfaces before choosing the configuration, and use a representative loaded cycle as the acceptance basis.
ASI Drives MARK 500 Single-Stage Transaxle FAQ
Is the ratio exactly 19:1?
The product features table specifies 19.2:1, while its descriptive text rounds to 19:1. Use the exact released configuration for speed calculations.
How does MARK 500 differ from MARK 600?
MARK 500 is described as a single-stage transaxle. MARK 600 uses a two-stage architecture with a different published selection range; their ratings should not be transferred between products.
Are PMDC and BLDC motors interchangeable with one controller?
Do not assume so. Select a controller compatible with the actual motor type, feedback and operating requirements.
Is peak-power torque a continuous rating?
No. A peak-power point identifies a point on the example curve. It does not establish continuous operation at that point or a universal assembly rating.
Can the track width be customized?
The manufacturer lists custom widths. Obtain a controlled drawing and exact replacement identity for the selected assembly.
Does outdoor suitability make IP67 standard?
No. IP67 conformity is an optional selection, and installation details and the actual environment still require qualification.
How much does it cost?
Request a quote for the exact motor, track width, axle interface, brake and environmental configuration.
What should an acceptance route include?
Include payload, grades, low-speed maneuvers, turns, stops and floor transitions, with thermal and battery measurements over repeated operation.
Prices are indicative and may change. Confirm the final configuration, commercial terms and delivery schedule before ordering.
