설명
WPKZ K+Z Flange-Mount Hollow Bore Cast Iron Worm Reducer — Product Overview
Vessel nozzle drives that require a coupling-free shaft connection face a specific engineering challenge: the Z-type flange mounts on the vessel, but the driven shaft needs to enter without a coupling. The WPKZ resolves this by combining the Z-type circular flange housing with a K-type hollow bore output. Mount the Z-flange to the vessel nozzle, insert the driven shaft through the hollow bore, key it, and the drive is complete — no coupling at the vessel interface.
This is the standard architecture for vessel-mounted shaft drives in food processing, pharmaceutical, and chemical industries where coupling hardware at the vessel nozzle level creates contamination risk or complicates validation documentation.

WPKZ Worm Reducer Specifications

| 매개변수 | 사양 |
|---|---|
| 시리즈 | 싱글 스피드 |
| 주택 구조 | 견고한 일체형 주철 |
| 입력 구성 | 견고한 샤프트 - 수직 상향식 (T자형, 위에서 봤을 때) |
| 출력 구성 | Hollow bore — K-type through-hole |
| 감소율 | 1/5~1/60 |
| 중심 거리 | 50~135mm |
| 설치 | Z-type circular flange mount + K hollow bore output |
| 주택 자재 | FC20+ 회주철(GG20) |
| 웜휠 소재 | 주석청동 ZCuSn10Pb1 |
| 웜 샤프트 재질 | 20CrMnTi, 표면 경도 55–60 HRC |
| 매끄럽게 하기 | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C) |
| 최대 오일 온도 | 95°C 연속 |
| 무게 범위 | 7~80kg |
| 특징 | K+Z: flange mount housing + hollow bore output — vessel nozzle drive with direct shaft insertion |
Size & Dimension Data
| 크기 | 비율 | 입력 전력(kW) | 출력 토크(Nm) | AB (mm) | 길이(mm) | B(mm) | CC (mm) | 무게(kg) |
|---|---|---|---|---|---|---|---|---|
| 50 | 1/5~1/50 | — | — | 108 | 77 | 150 | 50 | 7 |
| 60 | 1/10~1/50 | — | — | 120 | 82 | 168 | 60 | 10 |
| 70 | 1월 15일~1월 50일 | — | — | 140 | 95 | 194 | 70 | 15 |
| 80 | 1/20~1/50 | — | — | 160 | 100 | 214 | 80 | 20 |
| 100 | 1월 25일~1월 50일 | — | — | 190 | 135 | 254 | 100 | 35 |
| 120 | 1/30~1/50 | — | — | 219 | 160 | 282 | 120 | 60 |
| 135 | 1/40~1/60 | — | — | 249 | 170 | 317 | 135 | 80 |
WPKZ Worm Reducer — Core Features
■ K+Z: Flange Mount + Coupling-Free Shaft Output
The only WP reducer that combines vessel nozzle flange mounting with hollow bore shaft insertion. No coupling hardware at the vessel nozzle level — the shaft passes through the K-bore directly.
■ Z-Type 360° Rotational Positioning
Rotate the circular flange housing to any angular position during installation — directing the K-bore to precisely align with the driven shaft axis before bolting to the vessel nozzle.
■ Hollow Bore 22.8–64.4 mm Across 7 Sizes
Bore diameters from 22.8 mm (size 50) to 64.4 mm (size 135) cover the driven shaft diameters typical of process vessel agitator and conveyor shaft applications.
■ T-Type Top-Entry Input for Overhead Motor
Input shaft enters from above, positioning the motor directly overhead the vessel nozzle — the standard arrangement for vessel-top drive installations in process industries.
■ FC20+ Cast Iron for CIP Environments
Z-flange mounting at vessel nozzle level exposes the housing to cleaning-in-place chemicals and steam. FC20+ cast iron provides better chemical and moisture resistance than aluminium.
■ No Coupling Hardware at Vessel Interface
Eliminating the output coupling removes one contamination risk point, one lubrication maintenance point, and one fatigue failure mode from the vessel nozzle drive — essential in GMP-regulated production environments.
WPKZ Worm Reducer — Industry Applications

⚔ Food Processing Vessel Shaft Drives
Z-flange to vessel nozzle, shaft through K-bore — no coupling in the product zone. Clean drive architecture that simplifies GMP compliance documentation and reduces contamination risk.
☵ Pharmaceutical Mixer Shaft Drives
Coupling-free vessel nozzle drive for bioreactors and mixing vessels. K-bore eliminates the shaft coupling from the validated vessel boundary — simplifying change control and periodic inspection protocols.
⚒ Chemical Process Vessel Agitators
In chemical environments where coupling hardware requires compatible materials, WPKZ eliminates the coupling entirely — no compatibility verification required for the drive-to-shaft interface.
☷ Beverage Tank Discharge Drives
Z-flange mount to tank outlet nozzle with hollow bore for the discharge shaft — compact, coupling-free drive that contributes to the clean-zone design of beverage processing equipment.
Ever Power Manufacturing Quality — WPKZ Worm Reducer

■ ISO 9001:2000 인증 생산 시설
모든 제품은 ISO 9001:2000 품질 관리 기준에 따라 제조됩니다. 원자재 검사, 공정 중 점검 및 최종 조립 테스트는 모든 과정이 완벽하게 문서화되어 있으며, 각 제품의 일련번호를 통해 추적 가능합니다.
■ CE 마크 — EU 기계류 지침 2006/42/EC
CE 인증을 완벽하게 준수하여 기계식 동력 전달 장치에 대한 유럽 안전 및 설계 표준을 충족함을 확인했으며, EU, 영국, 호주 및 뉴질랜드 시장으로의 수출을 지원합니다.
■ 출하 전 테스트: 소음, 누출, 토크
모든 제품은 정격 부하에서 소음이 68dB(A) 미만, 30분 가압 누출 테스트, 정격 출력 토크의 ±5% 이내의 출력 토크 등 세 가지 테스트를 통과해야 합니다. 기준에 부합하지 않는 제품은 재작업 후 출하됩니다.
■ FC20+ 소재 인증
하우징 주조품은 FC20 등급에 대한 공장 인증서로 검증되며, 최소 인장 강도는 220MPa, 경도는 160~200HB입니다. 135 사이즈 이상 제품에 대해서는 초음파 결함 검사를 실시합니다.
WPKZ Worm Reducer — Customer Reviews
“WPKZ-80 on our vessel nozzle agitator shaft drives. Z-flange to nozzle, shaft through the K-bore — no coupling at the vessel flange level. Clean installation, no coupling contamination risk.”
“Used WPKZ-100 on our column-mounted shaft drives. Z-flange to column, driven shaft through the hollow bore. Rotating Z-mount to align the shaft precisely took two minutes — no bracket fabrication.”
“WPKZ on our food processing vessel drives. Shaft inserts through K-bore, Z-flange on nozzle — eliminates coupling hardware entirely. Very clean drive architecture for food plant requirements.”
“Good K+Z combination for vessel shaft applications. WPKZ-70 working well on our small process vessels. Would welcome a smaller size 40 mm for very compact vessel nozzle installations.”



