WPEA Doppelgeschwindigkeits-Schneckengetriebe aus Gusseisen – WP-Serie

The WPEA double speed cast iron worm reducer places two worm stages in tandem, achieving ratios from 1/200 to 1/900+ in a single foot-mount housing. Size combinations 40–70 to 155–250 mm, output torque up to 6,050 Nm, weight 20–462 kg.

Beschreibung

WPEA Double Speed Cast Iron Worm Reducer — Product Overview

Einstufige Schneckengetriebe erreichen Übersetzungsverhältnisse bis zu 1/60. Wenn Anwendungen Übersetzungen von 1/200, 1/500 oder 1/900 erfordern – beispielsweise Solartracker, Ventilantriebe, langsam laufende Förderbänder und Positionierantriebe – ist eine zweite Schneckenstufe die technische Lösung. WPEA Platziert zwei aufeinander abgestimmte Schneckengetriebestufen in Tandem in einem einzigen Gusseisengehäuse und liefert Übersetzungen von 1/200 bis über 1/900 in einer kompakten, fußmontierbaren Einheit ohne Zwischenwelle, ohne externe Kupplung zwischen den Stufen und ohne zusätzlichen Montagerahmen.

Both reduction stages share a single FC20+ dual-chamber cast iron housing. No intermediate coupling shaft, no external m… The dual-stage architecture uses matched tin-bronze worm wheels and 20CrMnTi worm shafts at both stages, providing consistent mesh quality and noise performance across the full ultra-high ratio range.

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WPEA double speed cast iron worm reducer two-stage ultra-high ratio

WPEA Double Speed Worm Reducer Specifications

WPEA double speed worm reducer dimension drawing two-stage size combination

Parameter Spezifikation
Serie Double Speed WPE
Gehäuse Solid integral cast iron, dual-stage
Eingang Solid shaft — below (A-type)
Ausgabe Vollwelle, horizontal
Verhältnisbereich 1/200–1/900+
Größenkombinationen 40–70 bis 155–250 mm
Montage Foot-mount B3
Gehäusematerial FC20+ Grauguss, Zweikammer
Schneckenräder Gepaartes Zinnbronze-ZCuSn10Pb1, beide Stufen
Schneckenwellen 20CrMnTi einsatzgehärtet 55–60 HRC, beide Stufen
Schmierung N220–N320 (−30 °C–40 °C); N320–N460 (40 °C–65 °C), beide Kammern
Maximale Öltemperatur 95 °C kontinuierlich
Gewichtsbereich 20–462 kg
Hauptmerkmal Two worm stages in tandem — ratio 1/200 to 1/900+ in single foot-mount housing

Größenkombination & Leistungsdaten

Größenkombination Verhältnis Eingangsleistung (kW) Ausgangsdrehmoment (Nm) A (mm) AA (mm) AB (mm) BB (mm) Gewicht (kg)
40–70 1/200 0.48 250 286 195 153 131 20
50–80 1/300 0.65 350 297 197 144 142 27
60–100 1/400 0.95 500 363 231 175 169 44
70–120 1/500 1.64 840 408 256 193 190 73
80–135 1/600 2.5 1,400 471 298 226 210 101
100–155 1/800 3.69 2,100 555 354 269 252 144
120–175 1/900 5.09 3,050 568 379 287 255 201
135–200 1/900+ 7.22 3,950 662 425 318 319 293
155–250 1/900+ 11.71 6,050 795 510 380 385 462

WPEA Double Speed Worm Reducer — Core Features

■ Two Worm Stages in One Housing — No Intermediate Shaft

Both reduction stages share a single FC20+ dual-chamber cast iron housing. No intermediate coupling shaft, no external mounting frame between stages — the complete ultra-high-ratio reducer in a single bolt-down unit.

■ Ratio 1/200 to 1/900+ — Standard Motor Input

A standard 1,450 rpm motor input becomes 1.6–7.3 rpm at size 40–70 ratio 1/900. Covers the full ultra-low output speed requirement without custom gearing or planetary add-on stages.

■ Output Torque to 6,050 Nm — Size 155–250

The largest size combination (155–250 mm) delivers up to 6,050 Nm at the highest available ratio — matching the torque demands of heavy-duty solar tracker drives and large valve actuators.

■ Matched Tin-Bronze Worm Wheels — Both Stages

Both worm wheel pairs use the same ZCuSn10Pb1 tin-bronze alloy and precision hobbing process, ensuring consistent mesh efficiency and noise performance across the two-stage reduction.

■ Bilateral A-Type Input — Standard Motor Coupling

The A-type solid input shaft accepts standard motor couplings from either side. No special motor adaptor required — the WPEA installs with the same motor connection hardware as a standard WPA.

■ FC20+ Dual-Chamber Cast Iron Housing — Full Rigidity

The dual-chamber housing is machined from a single FC20+ casting to maintain precise inter-stage alignment. No bolted split between stages — the worm shaft centreline geometry is set permanently at manufacture.

WPEA Worm Reducer — Industry Applications

WPEA double speed worm reducer ultra-high ratio industrial applications

☀ Solar Tracker Drives

WPEA ratios from 1/500 to 1/900 reduce standard motor speed to the 1–5 rpm range required for photovoltaic panel tracking drives. Single-unit installation eliminates the multi-stage drive train complexity of alternative approaches.

⚒ Industrial Valve Actuators

Gate valves, butterfly valves, and sluice gates requiring ultra-low output speed and high output torque are standard WPEA applications. Size 100–155 at 1/800 delivers 2,100 Nm from a standard 3.69 kW motor input.

⚙ Slow-Speed Conveyor Drives

Cooling conveyors, curing conveyors, and controlled-rate feed systems requiring belt speeds below 0.1 m/s use WPEA double-stage reduction to achieve the necessary output speed without VFD controls.

☷ Antenna & Satellite Positioning

WPEA extreme-ratio reductions provide the fine angular control needed for large antenna and satellite dish positioning systems where backlash and ratio precision are both critical.

Ever Power Fertigungsqualität – WPE Doppel-Schneckengetriebe

Ever Power Doppelgeschwindigkeits-Schneckengetriebe, zweistufige Fertigung

■ ISO 9001:2000-zertifiziert — Zweistufige Montage

Jede WPE-Doppelgeschwindigkeitseinheit durchläuft das Qualitätsmanagement nach ISO 9001:2000 auf beiden Ebenen der Schneckenstufenmontage. Die Ausrichtung zwischen den Stufen und die Genauigkeit des Gesamtübersetzungsverhältnisses werden vor der Endmontage überprüft.

■ CE-Kennzeichnung – EU-Maschinenrichtlinie 2006/42/EG

Die vollständige CE-Konformität der mechanischen Kraftübertragungsanlagen ermöglicht den Export in die Märkte der EU, Großbritanniens, Australiens und Neuseelands ohne erneute Zertifizierung.

■ Prüfung vor dem Versand: Geräusche, Leckage, Drehmoment

Geräuschpegel unter 68 dB(A) bei Nennlast, 30-minütige Druckdichtigkeitsprüfung beider Getriebekammern und Abtriebsdrehmoment innerhalb von ±51 TP3T des Nenndrehmoments. Nicht konforme Einheiten werden vor dem Versand nachbearbeitet.

■ FC20+ Materialzertifizierung — Beide Gehäuse

Sowohl das primäre als auch das sekundäre Schneckengehäuse sind durch FC20-Werkszeugnisse bestätigt: Mindestzugfestigkeit 220 MPa, Härte 160–200 HB. Ultraschallprüfung auf Materialfehler bei Größenkombinationen ab 135–200.

WPEA Double Speed Worm Reducer — Customer Reviews

★★★★★

“WPEA-80–135 on our solar tracker drives. Ratio 1/600 from a standard motor gives us exactly the panel rotation speed we need. One unit, one mounting frame, no intermediate coupling — clean installation.”

Perth — D.R.
★★★★★

“Used WPEA on our industrial valve actuators. The 1/800 ratio from a small motor delivers the torque we need for large gate valves. Far simpler than the multi-stage drive system we previously used.”

Singapore — T.H.
★★★★★

“WPEA on our curing conveyor drives. Ultra-slow belt speed with standard motor input — no VFD needed. The dual-stage unit is more compact than the equivalent two-reducer configuration.”

Auckland — B.F.
★★★★☆

“Good double-stage reducer for extreme ratio applications. WPEA-100–155 on our antenna positioning drives. Precise ratio, good torque. Would appreciate tighter backlash specification for demanding positioning applications.”

Tokyo — K.S.

Frequently Asked Questions — WPEA Double Speed Worm Reducer

▶ What ratio range does the WPEA double speed worm reducer cover?
The WPEA achieves ratios from 1/200 (size combination 40–70) to 1/900 and above (larger size combinations). The exact maximum ratio depends on the two individual stage ratios selected. Contact Ever Power with your target output speed and input motor speed for a size and ratio recommendation.
▶ How is the WPEA lubricated — does each stage require separate oil?
The two gear chambers are independent — each requires its own oil fill. Use the WPEA lubrication table for the correct oil volume for each chamber at the specified size combination. Both chambers use the same grade: N220–N320 for ambient below 40°C.
▶ Can the WPEA be used with a VFD motor?
Yes. For VFD applications, maintain first-stage input shaft speed between 600–1,500 rpm for adequate lubrication in both chambers. The ultra-high ratio means the output shaft speed will be extremely low — ensure the output shaft bearing load is within the WPEA rated radial and axial limits at the operating torque.
▶ What is the output torque at the largest WPEA size combination?
WPEA size combination 155–250 delivers up to 6,050 Nm. This is the combined output of both stages operating in tandem from a 11.71 kW input. Always verify that your driven shaft and coupling hardware are rated for this torque before specifying.
▶ How does the WPEA compare to using two separate single-stage reducers in series?
The WPEA dual-stage housing eliminates the intermediate shaft, coupling, and second mounting frame required by two separate reducers. This reduces total installed length by 30–50%, eliminates one misalignment point, and removes one coupling maintenance item from the service schedule.

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