EP-WPWD Universal Speed Reducer 4–376 kg | Worm Gear Drive
The EP-WPWD series is a versatile worm gear reducer designed for direct motor integration, featuring a robust cast iron housing and integrated motor flange. Available in sizes 40 to 250, it supports power inputs from 0.12 kW to 15.0 kW with reduction ratios ranging from 1/5 to 1/60. Weighing between 4 kg and 376 kg, the unit offers six shaft direction configurations (A-F) for flexible installation. Key specifications include motor flange compatibility up to M16 and output shafts up to 25×9 mm. This reducer ensures efficient torque transmission and compact design, making it ideal for industrial machinery requiring reliable speed control and direct-drive capabilities in space-constrained environments.
Universal Speed Worm Reducer Series
EP-WPWD Universal Speed Reducer
4–376 kg | Worm Gear Drive
The EP-WPWD is a precision-engineered Universal-Getriebe built for demanding industrial and agricultural environments. With input power ranging from 0.12 kW to 15 kW and reduction ratios from 1/5 to 1/60, this worm gear speed reducer delivers consistent torque, smooth operation, and long service life across a wide range of drive configurations.
Technical Specifications — EP-WPWD Series Universal Speed Reducer
| Größe | Eingangsleistung (kW) | Verhältnis | A | AB | BB | AC | BC | AD | CC | HL | H | Z×L | Motor Flange | Output Shaft W×Y | Gewicht (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 0.12 | 1/5 | 135 | 75 | 74 | 95 | 61 | 78 | 42 | 40 | 35 | 125 | M6×12 | 5×3 | 4 |
| 50 | 0.18 | 1/5 | 151 | 83 | 97 | 111 | 68 | 85 | 50 | 50 | 35 | 150 | M6×18 | 5×3 | 7 |
| 60 | 0.37 | 1/5 | 157 | 91 | 112 | 127 | 76 | 105 | 55 | 60 | 42 | 177 | M8×20 | 7×4 | 10 |
| 70 | 0.37 / 0.75 | 1/5–1/10 | 200–222 | 109–111 | 131 | 152 | 86 | 125 | 65 | 70 | 55 | 215 | M10×25 | 7×4 | 14.5 |
| 80 | 0.75 / 1.5 | 1/15–1/20 | 225 | 125 | 142 | 169 | 102 | 140 | 70 | 80 | 65 | 250 | M12×28 | 10×4,5 | 23 |
| 100 | 1.5 / 2.2 | 1/25 | 280 | 148 | 169 | 216 | 117 | 180 | 90 | 100 | 80 | 310 | M12×30 | 10×4,5 | 36.5 |
| 120 | 2.2 / 3.0 | 1/30 | 333 | 181 | 190 | 256 | 124 | 220 | 100 | 120 | 95 | 370 | M14×32 | 12×4,5 | 54 |
| 135 | 3.0 / 4.0 | 1/40–1/50 | 375 | 202 | 210 | 296 | 147 | 260 | 110 | 135 | 105 | 425 | M16×35 | 16×6 | 83 |
| 155 | 5.5 | 1/60 | 448 | 247 | 252 | 345 | 185 | 280 | 120 | 155 | 103 | 461 | M16×35 | 18×7 | 110 |
| 175 | 5.5 / 7.5 | 1/60 | 481 | 262 | 255 | 374 | 192 | 320 | 140 | 175 | 123 | 521 | M16×35 | 18×7 | 156 |
| 200 | 11.0 | 1/60 | 543 | 285 | 319 | 412 | 230 | 360 | 150 | 200 | 130 | 575 | M20×36 | 20×7,5 | 222 |
| 250 | 11.0 / 15.0 | 1/60 | 615 | 330 | 385 | 500 | 285 | 420 | 190 | 250 | 150 | 700 | M24×42 | 25×9 | 376 |
* BD and LS dimensions available on full drawing — contact us for complete dimensional drawings for each size.
Five Key Advantages of the EP-WPWD Universal Speed Reducer
Why engineers and procurement teams specify this universal speed reducer
Multi-Directional Shaft Output
The WPWD series supports six configurable shaft direction combinations (A through F), allowing installation flexibility that most standard worm drive reducers simply cannot match. Whether your drive arrangement is horizontal, vertical, or angled, the mounting geometry adapts without custom fabrication.
Wide Reduction Ratio Coverage
With gear reduction ratios spanning 1/5 through 1/60, this worm gear speed reducer accommodates everything from moderate speed step-down to high-torque low-speed output in a single product family. Operators running conveyor lines, mixers, or agricultural processing equipment can select the exact ratio for their load profile.
Standardised IEC Motor Flange
Each size is engineered with standard IEC motor flange dimensions (M6×12 through M24×42), making direct motor mounting straightforward. This eliminates the need for coupling adapters in most setups, reducing alignment errors and lowering total installation cost for electrical motor-driven universal speed reducer systems.
Compact Housing, Heavy-Duty Core
Despite its compact iron casting, the EP-WPWD universal speed reducer functions as a genuine heavy duty worm drive gearbox. Phosphor bronze worm wheels paired with hardened alloy steel worms deliver high surface hardness and excellent wear resistance — a combination that extends maintenance intervals and reduces lifecycle cost in continuous-duty applications.
Global Export Readiness & Scalable Supply
Units in the EP-WPWD universal speed reducer range ship to customers across Australia, the UK, the Netherlands, North America, Brazil, South Korea, and Colombia. Our production line manufactures each universal speed reducer to ISO 9001:2015 quality standards, and our engineering team can support custom shaft sizes, extended housings, or modified mounting bolt patterns on request.
What Is the EP-WPWD Universal Speed Reducer?
The EP-WPWD is classified within the WPWD family of double-enveloping or single-enveloping worm gear reduction units. It is a purpose-built Universal-Getriebe designed to transmit motion and torque between non-parallel, non-intersecting shafts — typically at a 90-degree angle — using a hardened steel worm meshing with a bronze alloy worm wheel. The resulting worm gear reduction ratio slows the output shaft significantly relative to the motor input shaft while multiplying torque proportionally.
Das Schneckengetriebe is offered in size designations from 40 through 250, covering input power from 0.12 kW up to 15.0 kW and unit weights from 4 kg to 376 kg. The broad dimensional and performance envelope makes the EP-WPWD one of the most versatile worm reducer gearbox solutions available for industrial procurement in global markets. Whether you need a replacement universal speed reducer for an existing line or you are specifying a new universal speed reducer for a greenfield project, this series covers the majority of standard requirements.
Shaft direction configurations are designated A through F, each defining a unique combination of input and output shaft orientation. This makes it straightforward to match the reducer to the physical layout of the machine without redesigning the drive train. The white universal speed reducer housing finish and green-coated variants both indicate standard phosphate or epoxy coating applied to resist light corrosion in industrial environments.
How Does a Worm Gear Reducer Work?
A Schneckengetriebe converts high-speed, low-torque rotational input from an electric motor into low-speed, high-torque output using the mechanical advantage of a helical worm thread. The worm — a spiral-threaded shaft — meshes at right angles with the teeth of the worm wheel. Because the worm thread must rotate many times to advance the wheel by one tooth, the output shaft turns far more slowly than the input. This fundamental characteristic is what makes a worm speed reducer gear box ideal for applications where smooth, self-locking speed reduction is required.
In the EP-WPWD universal speed reducer, the worm is manufactured from 20CrMnTi or 42CrMo alloy steel with surface hardness reaching HRC 45–55 after carburising and quenching. The worm wheel is cast from ZCuSn10Pb1 tin-bronze alloy, chosen specifically for its low friction coefficient against hardened steel, its ability to absorb shock loads, and its excellent embedability — allowing minor surface debris to embed harmlessly rather than scoring the tooth faces. Together, these material pairs give the worm gear reducer gearbox long, low-maintenance service life even under continuous-duty cycling.
A practical note on self-locking: when the worm gear reduction ratio is high (typically 1/30 and above), the EP-WPWD exhibits inherent back-drive resistance, meaning the load cannot rotate the output shaft back through the reducer without active motor torque. This is an important safety characteristic for hoisting, lifting, and positioning applications where the load must remain stationary when the motor is de-energised.
Universal Speed Reducer Materials & Construction Quality
Every component in the EP-WPWD universal speed worm gear reducer is selected with long-term field performance as the primary criterion. The housing is produced from GG25 grey cast iron, chosen for its excellent vibration damping characteristics, machinability, and dimensional stability. For larger sizes (200 and 250) where rigidity requirements are higher, ductile iron or cast steel housings are available as alternatives, depending on application load cycles and mounting orientation.
The worm shaft is produced from 20CrMnTi case-hardening steel or 42CrMo medium-carbon alloy steel. After hobbing, the worm profile undergoes carburising, quenching, and precision grinding to achieve a surface hardness in the HRC 45–55 range and a thread lead accuracy consistent with GB/T10085 standards. The worm wheel is cast from ZCuSn10Pb1 phosphor bronze, a material proven in high-sliding-contact applications. Its tin content provides wear resistance while its lead content ensures reliable bedding-in performance during the initial run period of a new worm reducer gearbox.
Bearings are selected from major-brand deep-groove ball bearings and taper roller bearings depending on the shaft load configuration. Oil seals are NBR-compound rotary shaft lip seals rated for continuous lubrication bath operation. Lubrication is provided by splash-bath mineral gear oil (ISO VG 220) filled at the factory before shipping; synthetic gear oil is compatible for extended-interval maintenance schedules.
External surfaces receive a multi-stage treatment: shot blasting, phosphate conversion coating, and an epoxy-based green or grey top coat. This finish is not purely cosmetic — the phosphate layer provides meaningful corrosion inhibition for warehousing and shipping periods, and the top coat adds UV and chemical splash resistance in light industrial environments. All material grades and process certifications are traceable to mill certification documents available on request.
Universal Speed Reducer Application Scenarios
Where industrial facilities, farms, and processing plants around the world rely on this worm drive speed reducer
Förderanlagen und Materialhandhabung
Belt conveyors, screw conveyors, and bucket elevators in grain terminals, mining sites, and quarries demand a reliable worm drive reducer that can sustain continuous-duty loading without overheating. The EP-WPWD universal speed reducer's high-torque output and self-locking characteristic at larger ratios make it a preferred choice for inclined conveyor drives where load holdback is critical to safety.
Agricultural Processing Machinery
Feed mixers, auger drives, straw baler press drives, and fertiliser spreader mechanisms used on farms across Australia, the UK, and the Netherlands routinely specify a large universal speed worm reducer in the 80–135 size range. These applications value the compact right-angle geometry, low noise output, and resistance to ingress from dust and chaff present in agricultural environments.
Packaging & Bottling Lines
Packaging equipment manufacturers in South Korea, Colombia, and Brazil frequently use the WPWD series as a new universal speed worm reducer for capping turrets, labelling stations, and product-indexing mechanisms. The smooth, vibration-dampened output of the worm gear pair reduces label misalignment and extends the service life of precision tooling on high-cycle packaging lines.
Water Treatment & Pump Drives
Slow-rotating paddle mixers, sludge scrapers, and clarifier drives in municipal water treatment plants use the EP-WPWD as a premium worm reducer in the 100–175 size range. The sealed housing and oil bath lubrication system tolerate high-humidity and chemically challenging environments without requiring frequent maintenance, which suits the demanding service schedules of utility installations.
Gate Valve & Actuator Drives
Pipeline gate valves, butterfly valves, and sluice gate operators use worm gear reducers precisely because high ratios produce strong self-locking, preventing unintended valve movement under differential pressure. The EP-WPWD in the 135–250 size range is a replacement Universal-Getriebe for existing valve actuator installations where dimensional compatibility with WPWD-standard mounting faces is required.
Lebensmittel- und Getränkeverarbeitung
Dough mixers, filling machines, and cooling tunnel drives in food processing facilities in Canada and the Netherlands require gentle speed transitions and low noise. The EP-WPWD with an electrical motor universal speed worm reducer pairing delivers smooth startup torque ramp characteristics that protect fragile products and high-value tooling from sudden impact loads during equipment cycling.
About us - Universal Speed Reducer Manufacturer
With more than a decade of hands-on experience in mechanical power transmission engineering, our production facility designs and manufactures a broad portfolio covering agricultural gearboxes, worm gear reducers, planetary gear drives, power take-off shafts, hydraulic cylinders, gears, chains, and motors. We operate under ISO 9001:2015 certification, which governs everything from raw material inspection through to finished-product dimensional verification and shipment packaging.
Our machining centres and casting lines produce components in ductile iron, grey cast iron, cast steel, precision investment cast steel, and cast aluminium. Beyond our standard range, we design and produce custom-specification worm gears, sprockets, pulleys, worm shafts, and general mechanical transmission assemblies to client drawings. This flexibility — rare at our production scale — is why procurement engineers working on replacement universal speed reducer projects and new-build machine designs return to us as their primary supplier.
Our export logistics team handles documentation for CE marking compliance, standard commercial invoicing, and country-specific import certification requirements across all major markets — Australia, the UK, the Netherlands, Brazil, Canada, South Korea, and Colombia — removing administrative friction from the procurement process for international buyers.
Werkstatt
Verwandte Produkte
System compatibility and one-stop supply — everything your drive train needs
Elektromotoren
Every Schneckengetriebe performs best when paired with a correctly sized motor. Our range of Elektromotoren covers standard IEC frame sizes matching the WPWD motor flange dimensions directly — no adapter plates required. From 0.12 kW fractional outputs through to 15 kW three-phase induction motors, we can supply the complete drive package and confirm system compatibility before shipment.
Vollbereichs-Schneckengetriebe
Beyond the WPWD, we supply a comprehensive series of Schneckengetriebe types covering NMRV, WP, and double-reduction configurations. Whether your application demands an nmrv worm reducer with aluminium housing for weight-sensitive installations or a heavy duty worm drive gearbox for industrial duty cycles, our full series provides an engineered solution.
Häufig gestellte Fragen
How does a worm gear reducer work in a continuous-duty conveyor application where the drive must hold the load when power is off?
In continuous conveyor applications, a Schneckengetriebe provides inherent self-locking at reduction ratios of 1/30 and above. When the motor is switched off, the angle of the worm thread relative to the wheel tooth face creates sufficient friction to prevent back-driving under static load. The EP-WPWD universal speed reducer at sizes 120 through 250 with 1/30–1/60 ratios delivers this safety feature without a separate brake, making it a cost-efficient choice for inclined conveyor systems where Australian safety standards require holdback capability on all load-bearing drives.
What is the correct replacement universal speed reducer when the existing WPWD-80 on my agricultural mixer is worn out and I need a drop-in substitute?
A direct replacement universal speed reducer for a WPWD-80 installation requires matching: centre distance (80 mm), input power rating, gear worm reduction ratio, shaft direction configuration (A–F), and motor flange bolt pattern. The EP-WPWD-80 universal speed reducer matches all standard WPWD-80 external dimensions, making it a bolt-on replacement without housing modification. Please confirm your existing ratio (1/15 or 1/20) and shaft direction code when ordering so we can supply the exact unit. Lead time for replacement universal speed reducer units in standard sizes is typically 3–7 working days from our stock.
Which size universal speed worm reducer is best suited for driving a gate valve actuator in a water treatment plant in the Netherlands that requires a minimum 1/50 gear reduction ratio?
For gate valve actuator applications in water treatment requiring a 1/50 worm gear reduction ratio, the EP-WPWD-135 is the recommended starting point. It covers input power up to 4.0 kW at 1/40 and 1/50 ratios with M16×35 motor flange. The sealed housing and IP55-equivalent protection level of the standard configuration suit the humid environment of a water treatment facility. If your actuator torque requirement is closer to the 155 or 175 size boundary, we can provide a torque-load calculation to confirm the specification before your procurement finalises.
Where can industrial buyers in Canada and South Korea source a large universal speed worm reducer for sale with full technical documentation and export clearance support?
Our export team handles regular shipments to Canada and South Korea. Large universal speed reducer orders — specifically the 175 through 250 size range — ship with full technical documentation including dimensional drawings, material certifications, test records, and commercial invoice sets meeting both HS code declaration requirements and each destination country's import inspection standards.
How often does a worm gear reducer gearbox installed on a packaging line in a Brazilian food-processing plant need oil changes and what type of gear oil is recommended?
For food-adjacent packaging environments in Brazil operating at ambient temperatures between 25–35 °C, the EP-WPWD ships pre-filled with ISO VG 220 mineral gear oil. Initial oil change is recommended at 300 operating hours to flush break-in debris from the bronze worm wheel.
When installing a brown universal speed worm reducer outdoors on agricultural equipment in the UK, what additional sealing or coating options are available to extend service life in wet field conditions?
For outdoor UK agricultural installations with frequent rain and mud exposure, we recommend requesting the enhanced sealing option on the EP-WPWD universal speed reducer. This includes double-lipped NBR oil seals on all shaft exits, a breather plug with an integrated moisture trap to prevent water ingress through pressure cycling, and an epoxy primer plus polyurethane topcoat in a custom brown universal speed worm reducer colour if required by your fleet colour coding standards.
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