WPKA Single Speed Cast Iron Worm Reducer — WP Series

Conventional solid-output worm reducers require a shaft coupling between the reducer and the driven equipment — adding installation time, alignment risk, and ongoing coupling maintenance. The WPKA eliminates all three: its K-type hollow bore slides directly over the driven shaft and locks via key and keyway, creating a rigid, zero-coupling drive in a single assembly step.

This clean mechanical integration makes the WPKA the standard choice for shaft-mounted conveyor head drives, mixer agitators, and rotating platform drives across mining, chemical processing, and bulk handling industries. The same FC20+ cast iron housing as the solid-output WPA ensures identical vibration damping and thermal performance — the hollow bore does not compromise structural rigidity.

✉ Fiyat Teklifi İsteyin | Ever Power Hakkında

■ K-Type Through-Bore — Zero Coupling Hardware

The H7-tolerance through-bore with GB/T 1095 keyway accepts the driven shaft directly. Rigid keyed connection transmits full rated torque without coupling elements — no coupling lubrication schedule, no coupling fatigue failure risk.

■ Bore Diameters 18.8–90 mm Across 12 Sizes

From 18.8 mm (size 40) for small conveyor stub shafts to 90 mm (size 250) for large agitator main shafts — covering the complete range of standard industrial shaft diameters in a single product series.

■ Torque Arm Boss — Housing Rotation Prevented

A machined torque arm boss on the housing accepts a standard reaction arm to prevent housing rotation when shaft-mounted. Multiple anchor point orientations accommodate varied installation geometries.

■ FC20+ Cast Iron — Full Structural Integrity Retained

The hollow output bore does not reduce housing rigidity. The WPKA retains the same FC20+ cast iron construction as the solid-output WPA, with identical 95°C continuous oil temperature rating.

■ Double-Lip Oil Seal on Both Bore Ends

Seals on both sides of the hollow bore prevent lubricant leakage onto the driven shaft and block contaminant ingress into the gear mesh — critical in food processing and chemical environments.

■ Bilateral Solid Input Shaft Maintained

Despite the hollow output bore, the input remains a standard solid shaft with bilateral connection, maintaining full WPA-series motor mounting compatibility.

⚊ Shaft-Mounted Conveyor Head Drives

The WPKA slides onto the conveyor head shaft, eliminating the external coupling and shaft-to-shaft alignment that accounts for a large share of conveyor drive maintenance issues. The torque arm handles the housing restraint.

☵ Agitator & Mixer Drives

Vessel agitator shafts drop straight through the WPKA hollow bore. No exposed coupling in corrosive process environments means no coupling fatigue failures and no coupling lubrication maintenance.

⚒ Bucket Elevator Head Drives

The shaft-mount configuration handles the sustained radial loads of bucket elevator drives better than solid-output units with external couplings that introduce additional bending moments on the shaft.

⚛ Fan & Blower Drives

Industrial fan shafts mount directly into the WPKA bore, removing coupling hub mass from the shaft overhang and improving dynamic balance in high-speed fan applications.

■ ISO 9001:2000 Sertifikalı

Her bir ünite ISO 9001:2000 kalite yönetim standardına uygun olarak üretilmektedir. Hammadde denetimi, süreç içi kontroller ve son testler belgelendirilmekte ve her bir ünitenin seri numarasına kadar takip edilebilmektedir.

■ CE İşareti — AB Makine Direktifi 2006/42/EC

CE uyumluluğunun tam olması, mekanik güç aktarımı için Avrupa güvenlik ve tasarım standartlarına uyumu teyit ederek AB, İngiltere, Avustralya ve Yeni Zelanda pazarlarına ihracatı desteklemektedir.

■ Sevkiyat Öncesi Testler: Gürültü, Sızıntı, Tork

Her bir ünite sevkiyat öncesinde üç testten geçer: nominal yükte 68 dB(A)'nın altında gürültü, 30 dakikalık basınç sızıntısı testi ve nominal değerin ±5% aralığında tork iletimi. Uygun olmayan üniteler yeniden işlenir, sevk edilmez.

■ FC20+ Malzeme Sertifikasyonu

Gövde dökümleri, FC20 sınıfı için fabrika sertifikalarıyla doğrulanır: minimum 220 MPa çekme dayanımı, 160–200 HB sertlik. 135 ve üzeri boyutlarda ultrasonik kusur testi yapılır.

“Replaced all belt conveyor head drives with WPKA shaft-mount units at our mine. Eliminated coupling failures entirely — zero drive-related stoppages in two years. Hollow bore installation takes 20 minutes per unit.”

“WPKA drives our reactor agitator shafts. Hollow bore goes straight onto the agitator shaft — no coupling exposed to our corrosive process atmosphere. Zero leaks after 36 months continuous operation.”

“Used WPKA-135 on bucket elevator head drives. Shaft-mount design reduced installed drive height by 180 mm versus solid-output unit plus coupling. Significant clearance improvement.”

“WPKA on steriliser cage conveyor in a wet steam environment. Cast iron durability outlasted the aluminium hollow-shaft units we previously used. Would appreciate Viton seal option as standard on these sizes.”