WPDKA Single Speed Cast Iron Worm Reducer — WP Series

The WPDKA combines D-type split housing, IEC motor flange input, and K-type hollow bore output in one cast iron worm reducer. Sizes 40–250 mm, ratio 1/5–1/60. One unit replaces gearbox, motor adaptor, and output coupling — reducing component count by three.

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WPDKA Cast Iron Worm Reducer — Product Overview

Most drive trains require three separate components between motor and driven shaft: a motor adaptor, a gearbox, and an output coupling. The WPDKA consolidates all three functions into a single cast iron worm reducer. The integrated IEC motor flange mounts the motor directly — no adaptor. The K-type hollow bore output receives the driven shaft directly — no coupling. The D-type split housing enables in-situ worm wheel maintenance — no teardown.

The result is the lowest component count, shortest installed drive length, and fastest maintenance access available in the WP worm reducer series. One WPDKA unit replaces gearbox plus adaptor plus coupling across the full size range of 40–250 mm centre distance.

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WPDKA cast iron worm reducer DKA combination IEC flange hollow bore split housing

WPDKA Worm Reducer Specifications

WPDKA worm reducer dimension drawing IEC flange and hollow bore measurements

Parametre Özellikler
Seri Tek Hızlı
Konut Yapısı D tipi bölünmüş dökme demir
Giriş Yapılandırması IEC motor flange — hollow bore (D-type)
Çıkış Yapılandırması Hollow bore — K-type through-hole
İndirgeme Oranı 1/5–1/60
Merkez Mesafesi 40–250 mm
Montaj Foot-mount: D-type IEC input + K hollow output
Konut Malzemesi FC20+ gri dökme demir (GG20)
Sonsuz Dişli Çark Malzemesi Kalay-bronz ZCuSn10Pb1
Sonsuz Dişli Mil Malzemesi 20CrMnTi, 55–60 HRC yüzey
Yağlama N220–N320 (−30°C–40°C); N320–N460 (40°C–65°C)
Maksimum Yağ Sıcaklığı 95°C sürekli
Ağırlık Aralığı 5–350 kg
Özel Bölüm Triple function: D-split + IEC input flange + K hollow output — lowest component count

Boyut ve Performans Verileri

Boyut Oran Giriş Gücü (kW) Çıkış Torku (Nm) A (mm) AB (mm) B (mm) BB (mm) Ağırlık (kg)
40 1/5 0.12 5–25 135 75 85 40 5
50 1/5 0.18 8–40 151 83 105 50 8
60 1/5 0.37 11–73 167 91 110 60 10.5
70 1/5–1/10 0,37–0,75 23–70 200/202 109/111 130 70 17
80 1/5–1/10 0,75–1,5 43–154 225 125 150 80 25
100 1/5–1/15 1.5 58–344 280 148 160 100 38
120 1/5–1/25 2.2–3.0 72–521 333 181 175 120 60
135 1/5–1/30 3.0–4.0 122–690 375 202 210 135 85
155 1/5–1/60 4.0–5.5 145–1260 448 247 256 155 120
175 1/5–1/60 5,5–7,5 210–1450 481 262 282 175 150
200 1/5–1/60 7.5–11.0 623–2856 543 285 320 200 218
250 1/5–1/60 11.0–15.0 850–3025 615 330 400 250 350

WPDKA Worm Reducer — Core Features

■ D-Type Split Housing — In-Situ Maintenance

Remove the top cover with motor and driven shaft in place. Inspect and replace the worm wheel without disconnecting any drive train element — the fastest maintenance access in the WP series.

■ IEC Motor Flange — Zero Adaptor Plate

Factory-machined IEC 72-1 flange accepts A02/Y-series motors frames 56–355 directly. Eliminates one component and one potential misalignment source from the drive train.

■ K-Type Hollow Bore — No Output Coupling

Precision H7-tolerance bore with GB/T 1095 keyway. Insert the driven shaft directly and key. No coupling lubrication, no coupling fatigue failure, and no coupling mass on the shaft overhang.

■ One Unit Replaces Three Components

WPDKA replaces the motor adaptor plate + gearbox + output coupling, reducing BOM count by two components, installation time by approximately 50%, and total installed drive length by 60–200 mm depending on size.

■ FC20+ Cast Iron Housing — Full Rigidity

Triple-feature architecture does not compromise structural integrity. The WPDKA retains FC20+ cast iron with 95°C continuous oil temperature rating, identical to the standard WPA.

■ Sizes 40–250 mm — Full Power Range Covered

Covers 0.12 kW (size 40) to 15.0 kW (size 250), with output torques from 5 Nm to 3,025 Nm — the complete range of standard OEM machine building and industrial conveyor drives.

WPDKA Worm Reducer — Industry Applications

WPDKA worm reducer construction and OEM machine building applications

⚒ OEM Compact Machine Design

Machine builders achieving the tightest possible drive envelope choose the WPDKA — IEC motor mounts direct, driven shaft inserts direct, and split cover provides maintenance access without disassembly.

⚙ Chemical & Wastewater Agitators

Agitator shafts insert through the hollow bore with no exposed coupling in corrosive process fluids. D-type housing enables annual worm wheel checks during routine maintenance windows without removing the motor.

⚊ Compact Conveyor Drive Packages

Shaft-mounted WPDKA with IEC motor reduces the installed height of conveyor head drive assemblies by eliminating adaptor and coupling components — critical in low-headroom installations.

⚙ Construction Equipment Drives

Robust FC20+ cast iron handles the shock loading of construction equipment drives. Triple-function design simplifies the drive system bill of materials for equipment manufacturers.

Ever Power Manufacturing Quality — WPDKA Worm Reducer

Ever Power WPDKA worm reducer manufacturing quality control

■ 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.

WPDKA Worm Reducer — Customer Reviews

★★★★★

“WPDKA eliminated three separate components from our mixer drive BOM — motor adaptor, gearbox, and output coupling. Assembly time per unit dropped from 45 minutes to 12 minutes.”

Melbourne — A.K.
★★★★★

“Used WPDKA-120 on our packaging line drives. Direct motor flange and hollow bore output gave us the most compact drive envelope we’ve achieved. No alignment issues after 12 months continuous running.”

Sydney — P.N.
★★★★★

“WPDKA on our sewage treatment agitators. Split housing made our first annual inspection very fast — full access with motor in-place. Worm wheel in excellent condition after 9,000 hours.”

Adelaide — T.R.
★★★★☆

“Very good multi-function unit. The DKA combination is exactly what our compact OEM conveyor design needed. Would welcome a larger selection in the 155–200 mm range.”

Bangkok — W.S.

Frequently Asked Questions — WPDKA Worm Reducer

▶ What makes the WPDKA different from the WPDA and WPKA individually?
The WPDKA combines all three features: D-type split housing (in-situ maintenance access), IEC motor flange input (no motor adaptor), and K-type hollow bore output (no output coupling). The WPDA has the IEC flange and split housing but a solid output shaft. The WPKA has the hollow bore but a standard solid input shaft.
▶ Which motor frame sizes fit the WPDKA IEC input flange?
Same as WPDA: sizes 40–80 accept frames 56–130; sizes 100–135 accept frames 130–200; sizes 155–250 accept frames 160–300. Verify motor LA, LB, LC dimensions against the WPDKA dimension drawing.
▶ How is the output shaft connected to the WPDKA hollow bore?
Insert the driven shaft into the K-type bore to the shoulder mark. Align the keyway and install the supplied key. Tighten set screws to the specified torque. Mount the torque arm reaction bracket to prevent housing rotation under load.
▶ Can the WPDKA housing top cover be removed with the motor attached?
Yes — this is the primary maintenance benefit of the D-type split housing. The top cover is removed without disturbing the motor flange joint or the driven shaft, enabling worm wheel inspection and replacement in-situ.
▶ Is the WPDKA suitable for VFD motor control?
Yes. Maintain input shaft speed between 600–1,600 rpm for adequate lubrication splash. Below 300 rpm, consider forced lubrication. Ensure the VFD output frequency does not cause the input shaft to run continuously below 10 Hz without a supplementary lubrication system.

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