EP-WPEDS Doppel-Geschwindigkeitsreduzierer
The EP-WPEDS is a compact, foot-mounted double speed reducer built around a worm-and-wheel transmission pair. Spanning input powers from 0.12 kW all the way up to 5.5 kW and covering unit weights of 19 kg to 470 kg, this series is engineered to translate high motor speeds into precisely controlled, high-torque output without sacrificing mechanical reliability over long service cycles. Whether you are integrating the reducer into a conveyoring line, a packaging system, or heavy agricultural handling equipment, the WPEDS geometry ensures smooth engagement, low vibration, and predictable thermal behaviour across the full load range.
EP-WPEDS Series
EP-WPEDS Doppel-Geschwindigkeitsreduzierer
Single-Stage Worm Gear Precision Drive · 19–470 kg · Global Industrial Supply
Technical Specifications — EP-WPEDS Double Speed Reducer Series
Dimensional data extracted from standard product drawing. All linear values in mm unless otherwise noted. Scroll horizontally on mobile to view all columns.
| Doppel-Geschwindigkeitsreduzierer
Größe |
Input Power (kW) | Ratio Range | A (mm) | AB (mm) | BB (mm) | HL (mm) | H (mm) | M (mm) | N (mm) | Output Shaft W×Y | Gewicht (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 40–70 | 0.12 | 1/200–1/900 | 314 | 153 | 131 | 215 | 238 | 150 | 190 | 7×4 | 19 |
| 50–80 | 0.18 | 1/200–1/900 | 314 | 144 | 142 | 250 | 273 | 170 | 220 | 10×4,5 | 27 |
| 60–100 | 0.37 | 1/200–1/900 | 387 | 175 | 169 | 310 | 334 | 190 | 270 | 10×4,5 | 45 |
| 70–120 | 0.37 / 0.75 | 1/200–1/900 | 425 / 445 | 193 | 190 | 370 | 423 | 230 | 320 | 12×5 | 75 |
| 80–135 | 0.75 / 1.5 | 1/200–1/900 | 499 | 226 | 210 | 430 | 482 | 250 | 350 | 16×6 | 103 |
| 100–155 | 1.5 | 1/200–1/900 | 570 | 269 | 252 | 490 | 541 | 275 | 390 | 18×7 | 147 |
| 120–175 | 2.2 / 3.0 | 1/200–1/900 | 631 | 287 | 255 | 555 | 600 | 310 | 430 | 18×7 | 204 |
| 135–200 | 3.0 / 4.0 | 1/200–1/900 | 580 | 318 | 319 | 625 | 677 | 360 | 480 | 20×7,5 | 298 |
| 155–250 | 5.5 | 1/200–1/900 | 915 | 380 | 385 | 755 | 824 | 460 | 560 | 25×9 | 470 |
Note: Dimensions shown are for reference. Confirm final dimensional drawings with the technical team before mechanical integration. Motor flange bolt pattern: M8–M12 depending on size; see flange drawing for LA, LB, LC, LE values.
Five Core Advantages of the EP-WPEDS Double Speed Reducer
① Wide Ratio Coverage
Reduction ratios from 1/200 to 1/900 in a single, standardised housing series allow precise speed-torque matching across packaging, food processing, and material handling applications without bespoke gearing.
② Multi-Directional Shaft Output
Five shaft orientation configurations (A–E) eliminate the need for additional bevel stages or mounting adaptors in most installations, keeping the drivetrain shorter, lighter, and more cost-effective at the system level.
③ ISO 9001:2015 Manufacturing Quality
Every WPEDS unit is produced under a certified quality management system. Dimensional tolerances on the worm shaft, wheel bore, and flange bolt pattern are held to class-6 precision, ensuring interchangeability with OEM and replacement double speed worm gear reducer specifications globally.
④ Low-Noise, Low-Vibration Drive
The hobbed bronze worm wheel meshes with a polished alloy-steel worm at a lead angle optimised for quiet engagement. Compared to helical or spur alternatives at comparable reduction ratios, the worm pair inherently damps vibration transmission, making the WPEDS well-suited to noise-sensitive environments such as food production halls and indoor logistics hubs.
⑤ Self-Locking Capability at High Ratios
At reduction ratios above 1/300, the worm geometry provides inherent back-drive resistance—a safety characteristic that eliminates the need for external braking devices on vertical conveyors and lifting tables, reducing total system component count and associated maintenance intervals.
How the Double Speed Reducer Works
The EP-WPEDS Double Speed Reducer operates on the proven principle of worm-and-wheel power transmission. A motor-driven worm shaft—a hardened, precision-ground helical screw—meshes at 90 degrees with a larger bronze worm wheel mounted on the output shaft. As the worm rotates, the helical threads progressively engage successive teeth on the wheel, converting high-speed rotary motion into low-speed, high-torque output in a single mechanical stage. The geometry of the worm threads determines the gear ratio: a single-start worm turning 200 revolutions drives the wheel through exactly one full revolution at a 1/200 ratio, while multi-start worms at the lower end of the ratio range still produce substantial torque multiplication in a compact envelope.
This sliding contact mechanism is what makes the double worm gear drive fundamentally different from involute gear sets. The oblique contact line distributes load across a wider tooth-face area at any instant, spreading Hertzian contact stress and extending surface fatigue life. Oil-bath lubrication, delivered through the integral oil reservoir in the lower housing sump, continuously coats the contact zone, regulating temperature and flushing wear particles away from the mesh.
The input shaft is supported on dual tapered roller bearings pre-loaded to eliminate axial play, while the output shaft rides on deep-groove ball bearings rated for combined radial and axial loading. This bearing arrangement maintains constant worm-to-wheel centre distance under fluctuating loads, preserving backlash specification throughout the reducer's service life and ensuring repeatable positioning accuracy in indexing applications.
Double Speed Reducer Materials & Construction
The outer housing of every WPEDS unit is cast from grade HT250 grey cast iron, a material chosen specifically for its excellent vibration-damping capacity, machinability, and proven corrosion resistance when combined with standard surface-treatment primers. For applications demanding higher structural rigidity under dynamic shock loading—such as heavy-duty worm drive gearboxes in quarrying or recycling conveyors—the housing is alternatively available in nodular (ductile) iron EN-GJS-500-7, which adds meaningful impact toughness without a significant mass penalty.
The worm shaft is manufactured from 20CrMnTi low-alloy carburising steel, case-hardened to 58–62 HRC at the tooth flanks while the core remains tough and ductile. After carburising and quenching, the worm profile is precision-ground on a CNC generating grinder to DIN 3974 accuracy class, producing a surface finish of Ra ≤ 0.8 µm that supports hydrodynamic oil-film separation at operating speeds.
The mating worm wheel is produced from centrifugally cast phosphor-bronze alloy CuSn12, a material long established in high torque worm gearbox design for its excellent compatibility against hardened steel, its natural anti-seize properties during start-up transients, and its resistance to micro-pitting fatigue. Wheel blanks are rough-bored, pressed onto a precision steel hub, and then hobbed as an assembly to guarantee concentricity between the bore and the tooth circle—eliminating the run-out errors that can arise when wheel and hub are machined separately before assembly.
Double Speed Reducer Application Scenarios
The EP-WPEDS double speed reducer is deployed wherever reliable, compact torque multiplication is needed in demanding duty cycles. Below are the primary sectors in which this worm gear speed reducer consistently outperforms alternatives.
Förderanlagen und Materialhandhabung
Belt conveyors, slat chains, and screw conveyors in warehousing, mining, and port terminals demand sustained torque at low output speeds. The WPEDS Double Speed Reducer handles continuous duty across shift patterns with stable thermal performance, thanks to its generously sized oil sump and finned housing profile that promotes natural convection cooling.
Landwirtschaftliche Maschinen
Feed augers, grain elevators, fertiliser spreader drives, and irrigation pivot arms across Australia, Canada, Brazil, and the Netherlands rely on worm gear reducer gearbox designs that tolerate dirty, wet environments. The sealed housing and robust lip-seal shafts of the WPEDS Double Speed Reducer keep contamination out even when operating in field conditions.
Packaging & Food Processing
Filling lines, labelling stations, and indexing turntables in food and beverage plants require precise, repeatable output speeds with minimal backlash. At reduction ratios above 1/400, the WPEDS delivers the high-torque Double Speed Reducer performance needed to hold position without brake-motor intervention, supporting sanitary equipment designs.
Lifting & Positioning Equipment
Scissor lifts, column lifters, and industrial stage platforms benefit directly from the self-locking characteristic of high-ratio worm drives. The WPEDS Double Speed Reducer maintains load position when power is disconnected, meeting safety requirements in the UK, South Korea, Colombia, and other markets without external ratchet mechanisms.
Construction & Building Services
Concrete mixer drives, hopper gates, and damper actuators in HVAC systems represent applications where the premium worm reducer's compact 90-degree drive configuration simplifies installation inside restricted equipment housings, reducing engineering hours at the machine design stage.
Renewable Energy & Utilities
Solar tracker drives, small hydro sluice gates, and wastewater treatment screen drives in Europe and the Asia-Pacific region utilise the gear worm reducer's inherent back-drive resistance as a passive holding mechanism, reducing electrical holding-torque demand on the motor and contributing to overall energy efficiency at the system level.
About the Double Speed Reducer Manufacturer
With over a decade of continuous production experience in industrial power transmission, we have refined our manufacturing processes around a single priority: building mechanical drives that perform reliably in real-world conditions, not just on a test bench. Our engineering team has accumulated deep hands-on knowledge across worm gear speed reducers, planetary drives, agricultural gearboxes, PTO driveshafts, hydraulic cylinders, motors, chains, and precision gear components—making us a one-source supplier for complex drivetrain assemblies rather than a simple parts vendor.
Our production facility operates under ISO 9001:2015 certification, covering the full manufacturing cycle from raw casting and forging through CNC machining, heat treatment, precision grinding, assembly, and final inspection. Castings are produced in-house from ductile iron, grey cast iron, cast steel, precision investment-cast steel, and cast aluminium according to part requirements. Finished gears, worm wheels, sprockets, pulleys, and worm shafts are machined to DIN or AGMA accuracy grades on dedicated CNC hobbing and generating grinding centres.
Werkstatt
Verwandte Produkte & Systemkompatibilität
The EP-WPEDS Double Speed Reducer is engineered to accept standard IEC-frame motor flanges across all size variants, making direct coupling to our range of electric motors straightforward and eliminating the need for adaptors or custom machining. Whether you are specifying a worm reducer motor for single-phase or three-phase supply, our technical team can confirm the correct motor frame and shaft diameter pairing for your application before you order—cutting lead time and reducing commissioning risk.
Schneckengetriebe Serie
For projects requiring a different housing type, ratio, or mounting configuration, our complete worm gearbox portfolio extends beyond the WPEDS series to include NMRV, WP, WPS, and WPEX variants. Sourcing the double speed reducer together with complementary units from a single supplier simplifies procurement, ensures dimensional consistency across a multi-axis machine, and provides a single point of technical accountability—a clear advantage for OEM integrators and replacement double speed worm gear reducer buyers in competitive tender processes.
Häufig gestellte Fragen
Q1. What gear reduction ratio should I choose for a heavy-duty conveyor application in an Australian mining facility that needs very slow, steady movement?
For very low conveyor speeds under sustained load—typical in Australian quarrying and mineral processing—ratios between 1/600 and 1/900 on the EP-WPEDS double speed reducer are generally appropriate. At these ratios, the worm gear geometry also provides inherent back-drive resistance, which prevents the conveyor from running back under load when the motor de-energises.
Q2. How does a double worm gearbox differ from a single-stage worm reducer when I am selecting a drive for a packaging line in the Netherlands or UK?
A double worm gearbox passes torque through two successive worm-and-wheel pairs, achieving very high overall ratios (often beyond 1/3600) while keeping output shaft speed extremely low. A single-stage Double Speed Reducer like the WPEDS typically covers ratios up to 1/900 in one pass. For most packaging line indexing and conveyoring applications in the Netherlands and UK where output speeds are in the range of 5–60 RPM, the single-stage WPEDS unit is usually the more efficient choice because two-stage designs multiply friction losses and increase overall heat generation at lower efficiency levels.
Q3. Which mounting configuration in the WPEDS series double speed reducer is most compatible with a vertical shaft output arrangement for a lifting table used in South Korean industrial automation?
Shaft orientation configurations C and D on the WPEDS Double Speed Reducer are designed to accommodate vertical output shaft arrangements. For lifting table applications where the output shaft drives a lead screw or pinion in a vertical axis—common in South Korean industrial automation and precision positioning cells—configuration D provides a downward-facing output with the input shaft at 90 degrees in the horizontal plane.
Q4. What are the main disadvantages of worm gear reduction gearboxes and how does the EP-WPEDS double speed reducer address them for industrial buyers in Brazil and Colombia?
The principal limitation of worm gear reduction gearboxes is efficiency: the sliding contact between the worm and wheel generates more heat per unit of transmitted power than rolling-contact gear sets, particularly at lower ratios and lighter loads. The WPEDS double speed reducer addresses this through phosphor-bronze wheel material selection (which reduces friction coefficient compared to standard tin-bronze), precision-ground worm flanks that minimise surface roughness, and an oil-bath lubrication system with a generously proportioned sump.
Q5. When should an agricultural equipment manufacturer in Canada or the UK specify an OEM double speed worm gear reducer supplier relationship instead of buying off-the-shelf units?
OEM double speed worm gear reducer supplier arrangements make sense when annual volumes exceed approximately 200 units and at least one of the following applies: you need a non-standard shaft diameter or keyway, a custom motor flange pattern, specific colour coding (for example a white double speed worm gear reducer or blue double speed worm gear reducer to match equipment livery), modified housing bosses for sensor mounting, or documentation packages to meet specific market certification requirements.
Q6. How do I confirm the correct worm gear installation orientation and initial lubrication steps when commissioning an EP-WPEDS double speed reducer for the first time on a new machine?
Before mounting, verify that the shaft orientation label (A through E) matches the assembly drawing. Torque all base mounting bolts to the specification in the installation guide and check that the output shaft rotates freely by hand before coupling to the driven load. On first fill, use the oil-fill port appropriate to the mounting attitude—the housing is cast with multiple port positions for this reason. Fill to the mid-point of the sight glass with the specified lubricant grade, run the unit under no-load for 30 minutes, then drain and refill.
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