Descrição
WPDZ D+Z Vessel-Top Cast Iron Worm Reducer — Product Overview
Vessel-top drive applications in food processing, pharmaceutical, and chemical industries impose three requirements simultaneously: mount directly to the vessel nozzle without a floor frame, connect the motor without an adaptor plate, and enable worm wheel inspection without vessel shutdown or motor removal. The WPDZ meets all three.
The Z-type circular flange bolts directly to the vessel nozzle. The IEC motor flange accepts the motor directly overhead without an adaptor. The D-type split housing opens for worm wheel inspection with both motor and vessel connections intact. Seven sizes from 50–135 mm centre distance cover the full range of standard process vessel drive torque requirements from 6 Nm to 690 Nm.

WPDZ Worm Reducer Specifications

| Parâmetro | Especificação |
|---|---|
| Série | Velocidade única |
| Estrutura habitacional | Separate split cast iron (D-type) |
| Configuração de entrada | IEC motor flange — vertical upward, top-entry (D+Z) |
| Configuração de saída | Solid shaft — horizontal |
| Taxa de redução | 1/5–1/60 |
| Distância do centro | 50–135 mm |
| Montagem | Z-type circular flange, D-split housing, IEC motor top-entry |
| Material de construção | Ferro fundido cinzento FC20+ (GG20) |
| Material da roda sem-fim | Bronze de estanho ZCuSn10Pb1 |
| Material do eixo sem-fim | 20CrMnTi, superfície HRC de 55–60 |
| Lubrificação | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C) |
| Temperatura máxima do óleo | 95°C contínuo |
| Faixa de peso | 8–80 kg |
| Recurso especial | D+Z: IEC motor flange + Z flange mount + D-split housing — three features for vessel-top drives |
Dados de tamanho e desempenho
| Tamanho | Razão | Potência de entrada (kW) | Torque de saída (Nm) | AB (mm) | LL (mm) | B (mm) | BB (mm) | Peso (kg) |
|---|---|---|---|---|---|---|---|---|
| 50 | 1/5 | 0.18 | 6–31 | 88 | 77 | 97 | 50 | 8 |
| 60 | 1/5–1/10 | 0.18–0.37 | 11–73 | 80 | 82 | 112 | 60 | 12.5 |
| 70 | 1/10–1/15 | 0.37–0.75 | 23–70 | 100 | 95 | 131 | 70 | 16 |
| 80 | 1/15–1/25 | 0.75–1.5 | 43–154 | 120 | 100 | 142 | 80 | 23 |
| 100 | 1/20–1/40 | 1.5 | 58–344 | 150 | 135 | 169 | 100 | 38 |
| 120 | 1/30–1/60 | 2.2–3.0 | 72–521 | 165 | 160 | 190 | 120 | 60 |
| 135 | 1/40–1/60 | 3.0–4.0 | 122–690 | 185 | 170 | 210 | 135 | 80 |
WPDZ Worm Reducer — Core Features
■ Z-Type Flange Mount — Vessel Nozzle Direct
Circular flange housing bolts to vessel nozzle, column, or custom flanged frame. No floor frame, no pedestal, no flat base surface required — essential for vessel-top installations.
■ IEC Motor Flange — Motor Bolts Direct Overhead
Integrated IEC flange eliminates the motor adaptor plate. Motor connects in four bolts from above — the standard overhead motor arrangement for vessel-top drives.
■ D-Type Split Housing — In-Situ Maintenance on Vessel
Remove the housing cover while the IEC motor stays connected and the Z-flange stays bolted to the vessel. Worm wheel inspection and replacement in-situ during standard maintenance windows.
■ Rotatable Output Shaft Direction
The Z-type circular flange allows housing rotation before bolt tightening — directing the horizontal output shaft toward any required direction without angular adapter hardware.
■ 7 Sizes: 50–135 mm — Purpose-Sized for Process Vessels
Z-type flange mounting is most common in the 50–135 mm centre distance range where vessel nozzle drives are typically specified. Torques from 6 Nm to 690 Nm cover standard mixing and conveying vessel drive requirements.
■ FC20+ Cast Iron — CIP and Steam Compatible
FC20+ grey cast iron housing withstands cleaning-in-place chemical exposure and steam cleaning procedures common in food and pharmaceutical vessel environments.
WPDZ Worm Reducer — Industry Applications

⚔ Food Processing Tank & Vessel Drives
WPDZ Z-flange bolts to mixing tank nozzles. IEC motor overhead, output shaft rotatable to required direction. D-split cover for hygiene inspection without vessel shutdown.
☵ Pharmaceutical Bioreactor Drives
Validated maintenance protocol requires worm wheel inspection without disconnecting the motor or the vessel seal. WPDZ D-split cover allows this without disturbing the motor or the validated vessel nozzle seal.
⚒ Chemical Reactor Column Drives
Mount to reactor column nozzles at any elevation without floor frame or pedestal. IEC motor overhead, horizontal output to discharge conveyor or downstream equipment.
⚛ Beverage Production Tank Drives
In beverage plant tank farms where vessel spacing is tight, WPDZ Z-flange mount eliminates the floor frame footprint, allowing tighter tank spacing and improved plant layout efficiency.
Ever Power Manufacturing Quality — WPDZ Worm Reducer

■ Produção com Certificação ISO 9001:2000
Cada unidade é fabricada sob o sistema de gestão da qualidade ISO 9001:2000. A inspeção da matéria-prima, as verificações durante o processo e os testes de montagem final são totalmente documentados e rastreáveis até o número de série de cada unidade.
■ Marcação CE — Diretiva de Máquinas da UE 2006/42/CE
A conformidade total com a marcação CE confirma a adesão às normas europeias de segurança e de projeto para transmissão de potência mecânica, permitindo a exportação para os mercados da UE, Reino Unido, Austrália e Nova Zelândia.
■ Testes pré-embarque: ruído, vazamento, torque
Cada unidade passa por três testes: ruído abaixo de 68 dB(A) com carga nominal, teste de vazamento sob pressurização por 30 minutos e torque de saída dentro de ±5% do valor nominal. Unidades não conformes são recondicionadas — não são enviadas.
■ Certificação de Material FC20+
As peças fundidas da carcaça são verificadas por certificados de fábrica para a classe FC20: resistência à tração mínima de 220 MPa e dureza de 160–200 HB. Teste de defeitos por ultrassom em peças de tamanho 135 e superiores.
WPDZ Worm Reducer — Customer Reviews
“WPDZ-100 on our vessel-top drives. Circular flange bolts to the vessel nozzle, IEC motor mounts direct overhead, D-split cover opens for annual inspection without removing motor or detaching from vessel. Exactly right.”
“Used WPDZ-80 on our pharmaceutical mixing vessels. Direct IEC motor, flange mount to nozzle, split cover for validated inspection — all in one compact unit. Meets our maintenance protocol requirements perfectly.”
“WPDZ on our food processing tank drives. Z-flange mount, IEC motor overhead, rotated output shaft to match our conveyor direction during installation. No custom brackets at all.”
“Good three-function unit for vessel drives. WPDZ-120 on our bioreactor mixing drives. IEC flange and split housing together make maintenance straightforward in our validated cleanroom environment.”
Frequently Asked Questions — WPDZ Worm Reducer
Get Your WPDZ Quote Today
Informe à Ever Power os requisitos da sua aplicação: torque, relação de transmissão, montagem e dimensões do eixo. Resposta da equipe de engenharia em até 24 horas. Especificações personalizadas para OEMs, preços para grandes quantidades e envio internacional disponíveis.



