EP-XL2433PNK 4500W 24V Oil Pump Motor
The EP-XL2430TW occupies the mid-power tier of the 24V oil pump motor series, producing 3000W output at a rated current of 160 A. With a rated torque of 11 N·m and a duty cycle covering S2 5-minute and S3 15%ED intermittent operation, it bridges the gap between the 2200W models suited to lighter lift and dock applications and the 4000W units required for the heaviest truck-mounted hydraulic power units. This positioning makes the XL2430TW the practical first choice for integrators who find the lighter motor thermally marginal but have no need for the larger frame and higher current draw of the 4 kW class.
A two-pole configuration and clockwise rotation direction are standard, with optional 12V and 48V voltage variants available in the same mechanical frame — a platform flexibility that simplifies OEM product design across multiple vehicle electrical architectures without requiring a separate structural or hydraulic pump coupling design for each voltage. The motor carries Class F insulation and an IP20 waterproof rating, making it appropriate for enclosed hydraulic power unit installations on indoor equipment and vehicle-mounted applications where the motor is sheltered from direct water exposure.
DC Motor Series · Oil Pump Motor
EP-XL2433PNK 4500W 24V Oil Pump Motor
Model: XL2433PNK | Power: 4500W | Voltage: 24V DC | Rated Current: 230A | Rated Torque: 16 N·m
Technical Specifications — XL2433PNK Oil Pump Motor
The table below lists the complete electrical and mechanical parameters of the EP-XL2433PNK Oil Pump Motor extracted from the product datasheet. Engineers specifying this motor as a new oil pump motor assembly or as a high-power oil pump motor replacement should note the 230A rated current and plan supply wiring, fusing, and contactor sizing accordingly. Performance curves across the full torque range from 0 to 20 N·m are available on request.
| Oil Pump Motor Parameter | Значення | Notes |
|---|---|---|
| Motor Model | XL2433PNK Oil Pump Motor | High-power rear-flange variant |
| Rated Voltage | 24 V DC | 48V optional |
| Rated Power | 4500 W | At rated load and speed |
| Rated Current | 230 A | At full rated load |
| Rated Torque | 16 N·m | Highest in XL series |
| Duty Cycle | S2 min – 10% ED | Intermittent short-duty |
| Insulation Class | Class F | Max winding temp 155 °C |
| Ingress Protection | IP20 | Enclosure installation |
| Number of Teeth | 9 | Gear output interface |
| Shaft Rotation | CW (Clockwise) | Viewed from output end |
| Overall Length | 251.7 ± 2 mm | Including output shaft |
| Frame Diameter | Ø110 mm | –0.05 / –0.02 tolerance |
| Output Shaft Diameter | Ø14.2 mm | Per outline drawing |
| Rear Mount Face Square | 117.4 × 117.4 mm | Four-bolt rear flange |
| Bolt Hole Diameter | 4 × Ø8.3 mm | M8 clearance holes |
| Terminal Thread | M6 (×2) | A1 and D2 supply terminals |
| Scope of Application | Vehicle power units, lifts, boarding trucks, specialised equipment |
Five Engineering Strengths of the EP-XL2433PNK Oil Pump Motor
Generating 4500W from a body just 251.7 mm long and Ø110 mm in diameter gives the XL2433PNK an exceptional power density for its footprint. Most motors in this power class are considerably bulkier, requiring larger mounting envelopes and heavier support structures. The compact dimensions of the XL2433PNK allow it to fit installations where space and weight budgets are tight without sacrificing output — a genuine engineering advantage for mobile equipment designers working to strict platform size constraints.
At 16 N·m, the XL2433PNK delivers the highest rated torque in the XL oil pump motor series, surpassing the XL40LT-24V's 14 N·m. This additional torque margin is meaningful when the connected hydraulic pump operates against maximum working pressure at start-up — cold oil, high viscosity, and full circuit pressure combine to demand peak torque at the instant the motor energises. The XL2433PNK handles this condition within its rated current envelope without stalling or tripping thermal protection.
The rear mounting face carries four bolt holes on a 117.4 mm square pattern, sized for M8.3 clearance (compatible with M8 fasteners). This rear-flange configuration mounts the motor against a pump manifold, equipment plate, or sub-frame bulkhead, with the drive shaft pointing forward into the pump. No intermediate cradle or foot bracket is required, reducing the total motor-pump assembly length and the number of structural joints that could contribute to misalignment or vibration transmission.
The available 48V configuration reduces rated current from 230A to approximately 115A at equivalent power output. For vehicle electrical systems where 48V battery architectures are adopted — increasingly common in new-generation electric work vehicles, autonomous mobile robots, and electrified construction equipment across Europe and North America — this option eliminates the need for heavy 50+ mm² supply cables and large-frame 300A contactors, significantly reducing system BOM cost and wiring installation labour.
An IP20 rating means the motor is protected against solid objects above 12.5 mm but is not splash-sealed. This is appropriate for motors installed inside power pack cabinets, enclosed chassis bays, or protected machine enclosures where the motor is shielded from direct water contact by its surrounding structure. IP20 allows the housing geometry to be optimised for heat dissipation rather than water exclusion, resulting in better thermal performance per unit volume than a fully sealed equivalent.
Operating Principle — High-Power Brushed DC Motor for Hydraulic Pumping
The dc motor working principle in the XL2433PNK follows the same electromagnetic foundation as all brushed permanent magnet DC motors: terminal voltage applied across A1 and D2 drives current through the wound armature, and the interaction between this armature magnetic field and the fixed field of the stator permanent magnets produces a torque on the rotor via the Lorentz force. What distinguishes the XL2433PNK from lighter-duty models is the engineering required to handle 230A through a commutator and brush system while maintaining commutation quality, minimising resistive losses, and keeping brush wear at an acceptable rate. The armature conductors are substantially heavier-gauge than those of the XL22 series, the commutator is wider with more copper segments to distribute the commutation energy across a greater contact area, and the brush system uses higher-mass brushes with increased contact area to carry the elevated current density without excessive temperature rise at the brush-commutator interface.
The 9-tooth gear output on the Ø14.2 mm shaft transfers the motor's 16 N·m rated torque directly to the input gear of the hydraulic gear pump. At full load, the shaft speed where rated torque occurs can be read from the performance curves: at the rated 16 N·m, the motor operates at approximately 2000–2500 RPM, with efficiency in the range of 60–70%. Peak efficiency — above 80% — occurs at lighter loads of 6–10 N·m in the 4000–5000 RPM band. Engineers specifying this motor as an oil pump motor set should select the gear pump displacement to place the normal operating torque within the high-efficiency RPM window, using the maximum-load condition (16 N·m, 230A) only for transient start-up peaks rather than sustained duty.
The IP20 protection level reflects a deliberate design trade-off. Rather than sealing the housing against water ingress, the design prioritises airflow paths through the housing to carry heat away from the winding during the motor's on-period. This passive ventilation is essential at 4500W: a fully sealed motor of the same Ø110 mm diameter would require active forced-air cooling to avoid thermal shutdown during the 10% ED cycles permitted. The enclosure-installation premise of IP20 assumes the motor is housed within a cabinet or chassis bay that provides its own environmental protection, which is the standard configuration for power pack enclosures in industrial and mobile equipment applications across Europe, North America, and Australia.
Materials & Construction Detail of Oil Pump Motor
The cylindrical outer barrel of the EP-XL2433PNK oil pump motor is manufactured from cold-drawn mild steel tube, selected for its high stiffness-to-weight ratio and the ease with which it can be precisely bored and faced on a CNC turning centre to achieve the tight diameter and concentricity tolerances required for accurate bearing bore alignment. Unlike aluminium alloy, steel conducts heat more slowly — but in an IP20 ventilated design, conduction to the outer surface is less important than the internal airflow that carries heat away from the winding directly. The rear mounting flange is machined as part of the steel body, ensuring the bolt pattern and the bearing bore are machined in a single datum setup and therefore perfectly co-axial. This eliminates the risk of motor-to-pump misalignment that arises when the mounting flange is a separately fastened casting.
The stator carries multiple high-energy sintered NdFeB permanent magnet segments bonded to the inner bore and retained by a thin steel sleeve — a construction that prevents magnet demagnetisation under the transient reverse fields that occur during rapid motor reversal or electrical braking. The armature core is built from stacks of 0.5 mm cold-rolled silicon steel laminations, chosen for their low hysteresis loss at the motor's operating frequency. Armature coils are wound from heavy-gauge enamelled copper conductors with Class F thermal index, and the complete winding is consolidated with vacuum-pressure impregnation (VPI) varnish that fills voids between conductors and between conductors and the slot walls, providing a solid thermal and mechanical bond that resists winding movement under the magnetic forces at 230A.
The commutator uses hard-drawn copper bar segments separated by mica insulation, precision-ground to a surface finish compatible with the brush grades selected for this motor's current density and speed. Terminal studs are M6 stainless steel, threaded directly into the rear end shield, providing robust, corrosion-resistant connection points for the heavy-gauge supply cables required at 230A. All oil pump motor parts are assembled and tested under ISO 9001:2015 quality management system controls, with each motor undergoing a no-load electrical run-in and a current/speed verification test before leaving the production facility.
Need the 48V variant, a complete motor-pump kit, or technical support on cable sizing and contactor selection?
Oil Pump Motor Application Scenarios
The EP-XL2433PNK Oil Pump Motor is specified where the hydraulic circuit demands the highest torque output from the smallest possible motor body. Below are the principal sectors where this combination of power density and torque capacity makes it the engineered choice.
Truck-mounted auxiliary hydraulic power units — driving tipper bodies, concrete mixer drums, crane outriggers, and rear-mounted tools — require a motor that delivers maximum torque immediately at energisation and sustains it through the full pump cycle. The XL2433PNK's 16 N·m at start-up gives the connected gear pump an instant pressure surge that brings the circuit to working pressure faster than any lower-torque alternative, reducing the operator-visible cycle time on every load-handling operation.
Airport boarding vehicles and aircraft passenger steps use hydraulic circuits to raise and lower a platform through a wide height range — from ground level up to aircraft door height — in a controlled, smooth manner. The XL2433PNK's high torque electric motor capability handles the full-load starting condition when the platform is loaded with passengers or crew and the cylinders must extend against maximum weight, while the compact 251.7 mm length fits within the chassis section of narrow-body boarding trucks.
Aerial work platforms with working heights above 20 m require large-bore hydraulic cylinders and high-pressure circuits. As an electric oil pump motor driving the main lift pump, the XL2433PNK sustains the flow rate needed to extend these cylinders at acceptable speed. Its 4500W output and 16 N·m torque address the peak demand at the moment of lift initiation, when oil temperature is lowest and pump back-pressure is highest — the hardest point in the hydraulic cycle for any motor-pump combination.
Hydraulic presses in metal forming, rubber moulding, and composite lay-up operations use short, intensive pump cycles: the press closes fast, holds at maximum pressure for a dwell period, then retracts rapidly. The S2 / 10% ED duty rating of the XL2433PNK is well matched to this cycle profile. The motor drives the gear pump during the close and open strokes, then sits idle during the dwell period, allowing heat to dissipate before the next cycle. This pattern is common across industrial manufacturing facilities in Germany, the UK, Canada, and Japan.
Battery-electric construction machines — electric mini excavators, compact electric wheel loaders, and battery-powered telehandlers — increasingly use 48V electrical systems with DC motor-driven hydraulic pumps rather than engine-driven axial piston pumps. The XL2433PNK's available 48V configuration makes it a strong candidate for this emerging segment, where the 115A supply current at 48V allows practical cable sizing and contactor selection from standard 48V EV component catalogues used across European and North American OEM supply chains.
Larger workboats, patrol vessels, and offshore support craft operate 24V or 48V DC ship service systems that power deck hydraulics for anchor windlasses, capstans, stabiliser fin actuators, and hatch cover drives. The XL2433PNK's high power density is specifically valuable in marine installations where weight and space in the machinery space are at a premium, and where the IP20 housing is acceptable because marine machinery space power packs are typically enclosed in their own drip-proof cabinets.
Precision Manufacturing — Over a Decade of Drivetrain Expertise
Our facility has accumulated more than ten years of practical engineering knowledge in mechanical power transmission and electromechanical drive design, and every oil pump motor set we produce reflects that accumulated experience. Production is governed by ISO 9001:2015 quality management system certification covering all stages — from incoming raw material inspection through CNC machining dimensional verification to the electrical run-in test of each completed motor. We manufacture the products we supply; there is no design-to-order intermediary layer between the engineering team and the shop floor.
Beyond the oil pump motor product line, our manufacturing capability spans agricultural gearboxes, worm gear reducers, planetary gear drives, power take-off shafts, hydraulic cylinders, precision gears, roller chains, and a comprehensive range of dc electric motors from fractional-kilowatt auxiliary units to multi-kilowatt traction drives. Castings are produced in ductile iron, grey cast iron, cast steel, precision investment-cast steel, and aluminium alloy to match the requirements of each product. Gears, sprockets, worm wheels, pulleys, and shafts are finished on multi-axis CNC hobbing, grinding, and turning centres to DIN and ISO standards. Customers sourcing a complete hydraulic drive system — motor, reducer, pump, and control components — can source every element through a single, technically accountable supplier, eliminating the interface risks and lead-time variability of multi-vendor procurement.
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Compatible Drive Components — Complete System Supply
At 4500W, the EP-XL2433PNK oil pump motor operates at the heart of a high-power hydraulic drive system. To simplify sourcing and guarantee interface compatibility across the full drivetrain, we supply the complete range of complementary components that pair directly with this motor.
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