EP-XL2455ZX 5500W 24V Oil Pump Motor
The EP-XL2455ZX represents the highest power output in the 24V oil pump motor series, delivering 5500W from a permanent magnet DC architecture that produces 16 N·m of rated torque at 205 A. This positions it as the correct specification for hydraulic power units where neither the 3 kW nor the 4 kW models deliver sufficient sustained output torque and flow to meet application requirements — typically where hydraulic cylinder bore sizes, operating pressures, or actuator travel distances exceed the performance envelope of the mid-range models. With an S2 10-minute and S3 25%ED duty cycle, it also provides the longest practical intermittent operating window in the 24V product family, making it appropriate for applications with extended or frequent actuation cycles that would thermally overload lighter models.
The 48V optional configuration enables system designers to maintain the same motor frame, pump coupling, and housing design across 24V and 48V vehicle electrical systems — a platform approach that reduces the product variant count in an OEM product range without sacrificing performance at either voltage. The motor’s Class F insulation and IP20 rating suit enclosed power unit installations on indoor industrial equipment and sheltered vehicle-mounted applications.
The motor’s performance curve confirms peak efficiency in the 50–85% load band across a torque range of approximately 5 to 16 N·m, which corresponds to the normal operating pressure range of gear oil pump motor sets at typical vehicle hydraulic circuit operating pressures.
Oil Pump Motor Series
EP-XL2455ZX 5500W 24V Oil Pump Motor
A 5.5 kW high-torque DC oil pump motor rated at 205 A and 16 N·m, engineered for the most demanding vehicle power units, heavy-capacity hydraulic lifts, boarding trucks, and specialised equipment where maximum output at 24V is required within an intermittent-duty operational profile.
Technical Specifications of Oil Pump Motor
The table below provides the verified electrical and mechanical parameters of the EP-XL2455ZX oil pump motor. Engineers specifying this unit as a direct oil pump motor replacement or for a new hydraulic power unit design should verify rated current, torque, duty cycle, flange geometry, and shaft dimensions against the host equipment's supply capacity, pump coupling, and mounting bracket before committing to an order.
| Oil Pump Motor Parameter | Value / Specification |
|---|---|
| Motor Model | XL2455ZX Oil Pump Motor |
| Rated Voltage (V) | 24 (optional: 48V) |
| Rated Power (W) | 5500 |
| Rated Current (A) | 205 |
| Rated Torque (N·m) | 16 |
| Duty Cycle | S2 10min – S3 25%ED |
| Insulation Class | F (max winding temp 155°C) |
| Waterproof Rating | IP20 |
| Tooth Number (Output Gear) | 9 |
| Rotation Direction | CW (Clockwise) |
| Flange Diameter (mm) | ∅142 (mounting flange) |
| Body Diameter (mm) | ∅95.5 ±0.5 (stator OD) |
| Shaft Diameter (mm) | ∅25 |
| Overall Length (mm) | 283.5 |
| Bearing Span / Shaft Section (mm) | 201.5 (bearing face to coupling face) |
| Mounting Bolt (mm) | 2× M8, 80 mm pitch (foot mount) |
| Optional Configuration | 48V supply variant |
| Scope of Application | Vehicle power units, lifts, boarding trucks, specialised equipment |
DC-motorns arbetsprincip
The XL2455ZX operates on the permanent magnet DC motor working principle, scaled to the 5.5 kW output level while retaining the operational simplicity that makes brushed DC motors the dominant choice in mobile hydraulic power unit applications. The stator carries high-coercivity permanent magnets that establish a stable, uniform magnetic field across the motor air gap. The nine-slot wound armature sits within this field, with each slot carrying copper conductors connected to the commutator segments in a winding arrangement designed to maximise torque output at the 205 A rated current while managing the thermal dissipation that occurs at this current density.
When rated current flows through the armature via the carbon brush and commutator interface, the Lorentz force on each armature conductor — the product of conductor current, magnetic flux density, and active conductor length — produces the tangential force that drives the output shaft. The commutator's mechanical switching action ensures that each armature slot always carries current in the direction that produces a torque contribution in the same rotational direction, regardless of the slot's angular position relative to the magnetic poles. This self-commutating behaviour is the fundamental operating mechanism of the DC motor working principle in brushed configurations, and it allows the motor to be operated using a simple voltage-switching circuit without the rotor position feedback and phase current control electronics required by a BLDC motor.
At 5.5 kW and 205 A, the XL2455ZX operates at the upper end of the 24V DC motor range where the current level makes cable sizing and contactor selection significant system-level design considerations. The motor performance curve shows speed varying from approximately 5,500 rpm at no load to around 3,500 rpm at rated torque, with efficiency peaking above 80% in the mid-torque range — a profile that suits gear oil pump motor set operation at typical vehicle hydraulic system pressures. The 48V optional configuration achieves the same mechanical output at approximately half the current, which considerably relaxes the cable and contactor specification and is the preferred selection for new power unit designs where 48V battery supply is available.
Five Key Product Advantages of Oil Pump Motor
Highest Output in the 24V Series
At 5500W and 16 N·m rated torque, the XL2455ZX delivers the highest power output available in the 24V oil pump motor family. For vehicle power units and heavy-duty lift platforms where the 4000W model is insufficient to generate the required system pressure within the actuation time budget, the XL2455ZX provides the additional torque margin needed without requiring a step up to a 48V-native system. This makes it the preferred oil pump motor for high-capacity tail-lift and access platform applications in European and North American markets.
S3 25%ED Extended Duty Rating
The S3 25%ED duty cycle represents the most generous intermittent rating in the 24V oil pump motor series. Applications with frequent short actuation cycles — high-throughput logistics loading bays, multi-platform vehicle lift systems, and industrial hydraulic clamping lines operating in multi-shift manufacturing environments — benefit from this extended duty headroom, which reduces the risk of thermal shutdown events during peak demand periods that can disrupt production schedules and in the worst case damage winding insulation through repeated exceedance of rated temperature limits.
24V / 48V Dual Voltage Platform
The availability of a 48V optional configuration in the same XL2455ZX mechanical frame allows OEM product designers to serve both 24V truck-standard and 48V electric vehicle-derived platform markets from a single motor mechanical design. At 48V, the motor produces equivalent mechanical output at approximately 102 A — roughly half the 24V current — which cuts cable cross-section requirements significantly and reduces the contactor rating needed for the motor switching circuit, lowering system integration cost in new platform designs where 48V is an option.
∅25 mm Shaft for High Torque Transfer
The ∅25 mm output shaft diameter is proportioned for the 16 N·m rated torque level, ensuring that the torsional stress in the shaft cross-section at rated load remains well within safe fatigue limits over the motor's design service life. This larger shaft section also provides a more stable gear pump coupling interface — the nine-tooth gear coupling operates with lower contact stress per tooth at the same transmitted torque compared to the smaller-shaft motors in this series — reducing gear wear rate and extending the oil pump motor assembly service interval.
ISO 9001:2015-certifierad tillverkning
Every EP-XL2455ZX oil pump motor is produced under a fully documented ISO 9001:2015 quality management system that covers incoming material inspection, in-process dimensional checks at each machining stage, heat treatment and winding process controls, assembled electrical test at rated current, and final dimensional and appearance inspection before dispatch. For OEM customers supplying to regulated industries — logistics equipment certification in Europe, ANSI/UL compliance in the USA, and workplace safety equipment standards in Australia — this documented quality chain provides the traceability and process evidence that certification bodies require.
Materials and Construction Quality
At 5.5 kW and 205 A rated operating current, the material and construction requirements of the XL2455ZX are more demanding than those of lower-power models in the same series. The motor housing is precision die-cast from high-grade aluminium alloy, dimensioned to maintain shaft bearing alignment under the combination of radial gear coupling loads and the axial forces generated by the nine-tooth output gear at 16 N·m transmitted torque. The housing wall section at the bearing bores is thicker than in the smaller models, reflecting the higher bearing radial load at maximum torque. The ribbed external surface provides convective cooling area proportioned for the 5.5 kW output level, ensuring the housing surface temperature remains within safe limits during the S3 25%ED duty cycle at the maximum ambient temperature specified in the product datasheet.
The armature core uses silicon steel laminations with a slot geometry and lamination thickness optimised for the operating electrical frequency of this motor at rated speed. At 5.5 kW, the armature winding must carry 205 A with copper conductors sized to maintain conductor current density within acceptable resistive heating limits across the duty cycle. The winding is impregnated with a Class F-rated varnish system after winding, consolidating the coil pack mechanically and improving the thermal conduction path from conductor to lamination to housing. The impregnation process is performed under vacuum and pressure to achieve a void-free result — voids in the varnish reduce thermal conductivity and can cause localised overheating that initiates insulation degradation even when the average winding temperature is within the Class F limit.
The commutator bar material is a silver-bearing copper alloy selected for stable graphite film formation at the 205 A current density and the commutator peripheral speed at operating RPM. At this current level, maintaining the integrity of the transfer film — the thin graphite layer that establishes low-friction, low-resistance electrical contact between the brush face and commutator bar — is the primary factor controlling brush and commutator wear rate and electrical noise. The brush grade, spring force, and commutator slot geometry are matched as a system to maintain film stability across the motor's operating speed and current range. The ∅25 mm output shaft is manufactured from case-hardened steel with a ground surface finish at the bearing journals and coupling gear interface, providing the dimensional accuracy and surface hardness needed to maintain gear engagement geometry and bearing running clearances over the motor's design service life.
Oil Pump Motor Application Scenarios
The EP-XL2455ZX 5500W 24V oil pump motor is specified where maximum 24V power output, highest torque delivery, and the most generous duty cycle in the series are all required simultaneously. It serves the upper tier of vehicle-mounted and industrial hydraulic applications that the lower-power models in this series cannot adequately cover.
Heavy-Capacity Tail-Lift Platforms
Truck tail-lift and vehicle-mounted access platform installations with rated capacities exceeding 1,500 kg — common in heavy logistics, container handling, and construction equipment sectors across Europe and North America — require a hydraulic oil pump motor capable of sustaining elevated system pressure for the full duration of a loaded raise cycle. The XL2455ZX's 16 N·m torque and S3 25%ED duty rating are directly applicable to these high-load, multi-cycle daily usage patterns in distribution centre and freight terminal environments.
High-Frequency Dock Levellers
Loading bay dock levellers in high-throughput distribution and logistics facilities may complete 50 or more raise-lower cycles per shift across multiple loading positions. At this frequency, the cumulative thermal load on an oil pump motor with a lower duty cycle rating quickly exceeds safe operating limits. The 25%ED S3 rating of the XL2455ZX allows it to sustain these high cycle rates without interruption, maintaining loading bay throughput in Australian, UK, and continental European logistics facilities where dock availability directly impacts vehicle turnaround time.
Large Boarding Bridge Systems
Airport passenger boarding bridges with large span and heavy structural dead weight require a hydraulic oil pump motor able to generate both the high flow rate needed for fast extension and retraction and the high system pressure needed when driving against the peak structural load at maximum extension. The XL2455ZX's combination of high torque and extended duty cycle covers this operational profile in large boarding bridge installations at busy international airports across the Middle East, Southeast Asia, and North America.
Industrial Hydraulic Press and Clamping Systems
Self-contained 24V hydraulic power units for medium-scale industrial presses, clamping fixtures, and robotic tooling positioners in automotive, aerospace, and general manufacturing environments benefit from the XL2455ZX oil pump motor's high power density in a compact 24V DC electric motor frame. Specifying the 48V configuration where the facility power system supports it further reduces cable installation cost and connector rating requirements in the power unit assembly, a practical benefit in German and Japanese manufacturing facilities where electrical installation standards tightly regulate conductor sizing and terminal current ratings.
Compatible Companion Products
The XL2455ZX is engineered for integration within a broader DC-powered drivetrain or hydraulic system. To reduce procurement lead time variability and eliminate interface compatibility uncertainty, we produce the full range of DC electric motors and worm gear reducers that pair with this unit across different application configurations — enabling complete drivetrain sourcing from a single supply chain.
Elmotorer
Our complete range of electric motors — including brushed DC, BLDC, and variable-voltage DC servo motor configurations — is available for auxiliary pump circuits, fan drives, and multi-motor hydraulic power unit assemblies alongside the XL2455ZX oil pump motor. All motor frames are offered with standard pump flange and shaft interfaces for direct assembly without adaptor components.
Snäckväxel
Where the XL2455ZX's output speed needs to be reduced for a slow-speed actuation stage, our snäckväxel range provides reduction ratios from 5:1 to 100:1 in input configurations matched to the XL2455ZX oil pump motor ∅25 mm output shaft geometry, available in both cast iron and aluminium housings depending on the weight and environmental requirements of the application.
Om oss
Established with more than ten years of mechanical engineering and manufacturing experience, our ISO 9001:2015 certified production facility produces an extensive range of power transmission and hydraulic components: agricultural gearboxes, worm reducers, planetary drives, PTO shafts, hydraulic cylinders, transmission gears, roller chains, sprockets, worm wheels, and DC electric motors for industrial and vehicle applications worldwide. Our engineering team designs and produces both catalogue-standard products and custom-engineered assemblies to customer specifications, working in materials that include ductile iron, cast iron, cast steel, precision investment-cast steel, and cast aluminium depending on the load, weight, and environmental requirements of each application.
Production capabilities include CNC turning, milling, gear hobbing, deep-hole drilling, bore finishing, and surface treatment, supported by CMM dimensional verification and full electrical load testing for all motor products. This integrated manufacturing model — from raw material through machining, heat treatment, winding, assembly, test, and inspection under one quality management system — allows us to ship consistent-quality products to OEM customers and industrial maintenance teams in North America, Europe, Asia, and Australia with the documentation package that regulated industries and equipment certification programmes require.
Verkstad
Vanliga frågor
What makes the EP-XL2455ZX the right oil pump motor for a heavy-capacity tail-lift on a European logistics vehicle?▼
For a heavy-capacity tail-lift on a European logistics vehicle — typically one rated above 1,500 kg — the XL2455ZX is selected because its 5500W output and 16 N·m rated torque are required to drive the hydraulic gear pump at the system pressure needed to raise a fully loaded platform within the actuation time that vehicle operational productivity demands. Lower-power 24V models in this series lack either the torque to reach full system pressure at rated load or the S3 25%ED duty cycle needed for the multiple raises-per-shift profile of a busy loading bay. The XL2455ZX's larger ∅25 mm shaft also handles the higher gear coupling loads at 16 N·m without the accelerated coupling tooth wear that smaller shafts would experience at this torque level.
How do I source a compatible 5.5 kW oil pump motor replacement for a 24V hydraulic power unit on a dock leveller system in the USA or Canada?▼
For a 5.5 kW, 24V dock leveller hydraulic power unit replacement in the USA or Canada, confirm the following parameters from the existing motor or power unit documentation before ordering: rated voltage (24V), rated power or current (5500W / 205A for the XL2455ZX), mounting type and bolt pattern (foot mount, 2×M8 at 80 mm pitch), overall length (283.5 mm), flange and body diameters (∅142 mm flange, ∅95.5 mm body), shaft diameter (∅25 mm), output gear tooth count (9 teeth), and rotation direction (CW). If the original motor's mounting or coupling dimensions differ from any of these, contact the supplier before ordering to confirm whether an adaptor or modified coupling can resolve the dimensional mismatch without a full power unit redesign.
When should I choose the 48V optional configuration of the XL2455ZX electric oil pump motor instead of the standard 24V version for a new platform design?▼
The 48V optional configuration is the better choice for a new platform design when the vehicle or equipment battery system supports 48V supply, when the installed cable runs between the battery and the motor are long enough that a 205 A current at 24V would cause unacceptable voltage drop and power loss, or when the motor controller or contactor procurement cost at 205 A is significantly higher than at the approximately 102 A current required at 48V for the same 5.5 kW output. The 48V version also reduces the heat generated in the cable and connector resistance losses, which can improve overall system efficiency and reduce battery discharge rate — a meaningful benefit in battery-powered equipment where runtime between charges is a commercial performance criterion.
What is the oil pump motor assembly lead time for a custom OEM order of the XL2455ZX for boarding bridge applications in the Middle East?▼
Lead time for an OEM oil pump motor assembly order of the EP-XL2455ZX for boarding bridge applications in the Middle East depends on the order quantity, the specific configuration (24V standard or 48V optional), and whether any dimensional or electrical customisation is required relative to the standard product specification. Standard configuration units are typically available with a shorter lead time than custom-modified variants. For export to Middle Eastern markets, full technical documentation including ISO 9001:2015 certification records, dimensional drawings, wiring diagrams, and performance test data is provided with each order to support equipment certification applications required by regional civil aviation or ground support equipment regulators.
Which high torque DC motor configuration is best for a 24V self-contained hydraulic power unit used in automotive manufacturing in Germany or Japan?▼
For a 24V self-contained hydraulic power unit in an automotive manufacturing environment in Germany or Japan — typically used for clamping fixtures, welding positioners, or hydraulic press tooling — the XL2455ZX is the appropriate high torque DC motor when the circuit requires oil pump motor torque above 13 N·m or duty cycle above 20%ED. At 16 N·m and S3 25%ED, it covers the range of clamping and pressing forces and cycle rates typical of production-line hydraulic tooling.
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