Penerangan
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 | Spesifikasi |
|---|---|
| Siri | Kelajuan Tunggal |
| Struktur Perumahan | Besi tuang bersepadu pepejal |
| Konfigurasi Input | Aci pepejal — menegak ke atas (jenis T, dari atas) |
| Konfigurasi Output | Hollow bore — K-type through-hole |
| Nisbah Pengurangan | 1/5–1/60 |
| Jarak Pusat | 50–135 mm |
| Pemasangan | Z-type circular flange mount + K hollow bore output |
| Bahan Perumahan | Besi tuang kelabu FC20+ (GG20) |
| Bahan Roda Cacing | Timah-gangsa ZCuSn10Pb1 |
| Bahan Aci Cacing | 20CrMnTi, permukaan 55–60 HRC |
| Pelinciran | N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C) |
| Suhu Minyak Maks | 95°C berterusan |
| Julat Berat | 7–80 kg |
| Ciri Khas | K+Z: flange mount housing + hollow bore output — vessel nozzle drive with direct shaft insertion |
Size & Dimension Data
| Saiz | Nisbah | Kuasa Input (kW) | Tork Output (Nm) | AB (mm) | LL (mm) | B (mm) | CC (mm) | Berat (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

■ Pengeluaran Bertauliah ISO 9001:2000
Setiap unit dihasilkan di bawah pengurusan kualiti ISO 9001:2000. Pemeriksaan bahan mentah, pemeriksaan dalam proses dan ujian pemasangan akhir didokumenkan sepenuhnya dan boleh dikesan mengikut nombor siri setiap unit.
■ Penandaan CE — Arahan Jentera EU 2006/42/EC
Pematuhan penuh CE mengesahkan pematuhan kepada piawaian keselamatan dan reka bentuk Eropah untuk penghantaran kuasa mekanikal, sekali gus menyokong eksport ke pasaran EU, UK, Australia dan New Zealand.
■ Ujian Pra-Penghantaran: Bunyi, Kebocoran, Tork
Setiap unit lulus tiga ujian: hingar di bawah 68 dB(A) pada beban undian, ujian kebocoran tekanan 30 minit dan tork output dalam lingkungan ±5% daripada undian. Unit yang tidak mematuhi piawaian akan dibaik pulih — tidak dihantar.
■ Pensijilan Bahan FC20+
Tuangan perumah disahkan oleh sijil kilang untuk gred FC20: kekuatan tegangan minimum 220 MPa, kekerasan 160–200 HB. Ujian kecacatan ultrasonik pada saiz 135 dan ke atas.
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
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