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
| Parameter | Specification |
|---|---|
| Series | Single Speed |
| Housing Structure | Solid integral cast iron |
| Input Configuration | Solid shaft — vertical upward (T-type, from top) |
| Output Configuration | Hollow bore — K-type through-hole |
| Reduction Ratio | 1/5–1/60 |
| Centre Distance | 50–135 mm |
| 설치 | Z-type circular flange mount + K hollow bore output |
| Housing Material | FC20+ grey cast iron (GG20) |
| 웜휠 소재 | Tin-bronze ZCuSn10Pb1 |
| 웜 샤프트 재질 | 20CrMnTi, 55–60 HRC surface |
| 매끄럽게 하기 | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C) |
| Max Oil Temperature | 95°C continuous |
| Weight Range | 7–80 kg |
| Special Feature | K+Z: flange mount housing + hollow bore output — vessel nozzle drive with direct shaft insertion |
Size & Dimension Data
| Size | 비율 | Input Power (kW) | Output Torque (Nm) | AB (mm) | LL (mm) | B (mm) | CC (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 50 | 1/5–1/50 | — | — | 108 | 77 | 150 | 50 | 7 |
| 60 | 1/10–1/50 | — | — | 120 | 82 | 168 | 60 | 10 |
| 70 | 1/15–1/50 | — | — | 140 | 95 | 194 | 70 | 15 |
| 80 | 1/20–1/50 | — | — | 160 | 100 | 214 | 80 | 20 |
| 100 | 1/25–1/50 | — | — | 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 Certified Production
Every unit is manufactured under ISO 9001:2000 quality management. Raw material inspection, in-process checks, and final assembly testing are fully documented and traceable to each unit’s serial number.
■ CE Marking — EU Machinery Directive 2006/42/EC
Full CE compliance confirms adherence to European safety and design standards for mechanical power transmission, supporting export to EU, UK, Australian, and New Zealand markets.
■ Pre-Shipment Testing: Noise, Leak, Torque
Every unit passes three tests: noise below 68 dB(A) at rated load, 30-minute pressurisation leak test, and output torque within ±5% of rated. Non-conforming units are reworked — not shipped.
■ FC20+ Material Certification
Housing castings are verified by mill certificates for FC20 grade: minimum 220 MPa tensile strength, 160–200 HB hardness. Ultrasonic defect testing on size 135 and above.
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.”
Frequently Asked Questions — WPKZ Worm Reducer
Get Your WPKZ Quote Today
Tell Ever Power your application requirements — torque, ratio, mounting, and shaft dimensions. Engineering response within 24 hours. OEM custom specifications, bulk pricing, and global shipping available.
