{"id":1929,"date":"2026-05-27T06:45:29","date_gmt":"2026-05-27T06:45:29","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/wpweko-hollow-shaft-vertical-flange-base-double-speed-worm-gear-reducer\/"},"modified":"2026-05-27T06:45:29","modified_gmt":"2026-05-27T06:45:29","slug":"wpweko-hollow-shaft-vertical-flange-base-double-speed-worm-gear-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/vi\/product\/wpweko-hollow-shaft-vertical-flange-base-double-speed-worm-gear-reducer\/","title":{"rendered":"WPWEKO Hollow Shaft Vertical Flange-Base Double Speed Worm Gear Reducer"},"content":{"rendered":"
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WPWEKO Hollow Shaft Vertical Flange-Base Double Speed Worm Gear Reducer \u2014 The Most Feature-Complete Product in the WPE Two-Stage Series<\/h1>\n

The WPWEKO<\/strong> represents the highest integration point in the WPE double-speed family \u2014 combining four engineering features that individually define separate product categories: a hollow output bore (coupling-free shaft mounting), multi-direction mounting including full vertical, a flanged anchor base for rigid structural mounting, and two-stage 1\/200\u20131\/900 ultra-high ratio reduction. No other WPE product incorporates all four features simultaneously.<\/p>\n

This makes the WPWEKO the definitive solution for offshore platform hollow-shaft drives, marine vertical agitator systems, and heavy-duty energy industry drives<\/em> where coupling-free output, vertical installation, anchor-bolt base rigidity, and ultra-high ratio must all be specified together in a single compact cast iron unit. Available in 9 size groups<\/strong>, bore 30\u2013110 mm, ratios 1\/200\u20131\/900. Gi\u1edbi thi\u1ec7u v\u1ec1 Everpower<\/a> | Request a Technical Consultation<\/a><\/p>\n<\/section>\n

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Technical Specifications<\/h2>\n

WPWEKO dimensional data. BA = housing offset; CA = output shaft span; E, E\u2081, E\u2082 = output shaft dimensions; M, N, H = housing body dimensions. S = hollow bore diameter (H7). Reference speed 1500 r\/min<\/strong>. All dimensions in mm.<\/p>\n

\"WPWEKO<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/th>\nRatio<\/th>\nA<\/th>\nAA<\/th>\nAB<\/th>\nB<\/th>\nBA<\/th>\nBC<\/th>\nBE<\/th>\nHB<\/th>\nCA<\/th>\nH<\/th>\nM<\/th>\nN<\/th>\nE<\/th>\nE\u2081<\/th>\nE\u2082<\/th>\nG<\/th>\nZ<\/th>\nHS<\/th>\nU<\/th>\nT\u00d7V<\/th>\nS(bore)<\/th>\nW\u00d7Y(keyway)<\/th>\nWt(kg)<\/th>\n<\/tr>\n<\/thead>\n
40-70<\/td>\n1\/200\u20131\/900<\/td>\n286<\/td>\n195<\/td>\n153<\/td>\n130<\/td>\n40<\/td>\n65<\/td>\n87<\/td>\n50<\/td>\n157<\/td>\n140<\/td>\n152<\/td>\n305<\/td>\n120<\/td>\n120<\/td>\n155<\/td>\n20<\/td>\n15<\/td>\n25<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n30<\/td>\n8\u00d733.3<\/td>\n19.5<\/td>\n<\/tr>\n
50-80<\/td>\n<\/td>\n297<\/td>\n197<\/td>\n144<\/td>\n150<\/td>\n50<\/td>\n70<\/td>\n108<\/td>\n65<\/td>\n188<\/td>\n155<\/td>\n174<\/td>\n350<\/td>\n140<\/td>\n140<\/td>\n180<\/td>\n20<\/td>\n15<\/td>\n30<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n35<\/td>\n10\u00d738.3<\/td>\n30.5<\/td>\n<\/tr>\n
60-100<\/td>\n<\/td>\n363<\/td>\n231<\/td>\n175<\/td>\n160<\/td>\n60<\/td>\n90<\/td>\n120<\/td>\n75<\/td>\n222<\/td>\n192<\/td>\n224<\/td>\n410<\/td>\n190<\/td>\n165<\/td>\n215<\/td>\n22<\/td>\n15<\/td>\n40<\/td>\n15<\/td>\n5\u00d73<\/td>\n40<\/td>\n12\u00d743.3<\/td>\n47<\/td>\n<\/tr>\n
70-120<\/td>\n<\/td>\n408<\/td>\n256<\/td>\n193<\/td>\n175<\/td>\n70<\/td>\n100<\/td>\n140<\/td>\n90<\/td>\n260<\/td>\n225<\/td>\n264<\/td>\n494<\/td>\n220<\/td>\n195<\/td>\n255<\/td>\n25<\/td>\n18<\/td>\n40<\/td>\n18<\/td>\n5\u00d73<\/td>\n45<\/td>\n14\u00d748.8<\/td>\n69<\/td>\n<\/tr>\n
80-135<\/td>\n<\/td>\n471<\/td>\n298<\/td>\n226<\/td>\n210<\/td>\n80<\/td>\n110<\/td>\n160<\/td>\n105<\/td>\n295<\/td>\n255<\/td>\n304<\/td>\n559<\/td>\n260<\/td>\n230<\/td>\n285<\/td>\n30<\/td>\n18<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n60<\/td>\n18\u00d764.4<\/td>\n105<\/td>\n<\/tr>\n
100-155<\/td>\n<\/td>\n555<\/td>\n354<\/td>\n269<\/td>\n256<\/td>\n100<\/td>\n140<\/td>\n190<\/td>\n130<\/td>\n345<\/td>\n320<\/td>\n345<\/td>\n605<\/td>\n290<\/td>\n250<\/td>\n305<\/td>\n35<\/td>\n21<\/td>\n50<\/td>\n25<\/td>\n7\u00d74<\/td>\n70<\/td>\n20\u00d774.9<\/td>\n163<\/td>\n<\/tr>\n
120-175<\/td>\n<\/td>\n598<\/td>\n379<\/td>\n287<\/td>\n282<\/td>\n120<\/td>\n150<\/td>\n219<\/td>\n155<\/td>\n394<\/td>\n365<\/td>\n374<\/td>\n675<\/td>\n320<\/td>\n273<\/td>\n348<\/td>\n40<\/td>\n21<\/td>\n65<\/td>\n30<\/td>\n7\u00d74<\/td>\n80<\/td>\n22\u00d785.4<\/td>\n208<\/td>\n<\/tr>\n
135-200<\/td>\n<\/td>\n662<\/td>\n425<\/td>\n318<\/td>\n320<\/td>\n135<\/td>\n175<\/td>\n256<\/td>\n185<\/td>\n456<\/td>\n415<\/td>\n424<\/td>\n749<\/td>\n370<\/td>\n305<\/td>\n390<\/td>\n40<\/td>\n24<\/td>\n75<\/td>\n35<\/td>\n10\u00d74.5<\/td>\n85<\/td>\n22\u00d790.4<\/td>\n302<\/td>\n<\/tr>\n
155-250<\/td>\n<\/td>\n795<\/td>\n510<\/td>\n380<\/td>\n400<\/td>\n155<\/td>\n200<\/td>\n295<\/td>\n203<\/td>\n545<\/td>\n458<\/td>\n510<\/td>\n920<\/td>\n440<\/td>\n375<\/td>\n475<\/td>\n45<\/td>\n28<\/td>\n85<\/td>\n40<\/td>\n12\u00d75<\/td>\n110<\/td>\n28\u00d7116.4<\/td>\n476<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* S = hollow bore H7. E\u2081 and E\u2082 = output shaft extension dimensions above and below the housing face for vertical mounting. BA, BC = housing body dimensional offsets. Multi-face oil ports not shown \u2014 supplied with position-specific oil fill instructions.<\/p>\n<\/section>\n

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Product Structure \u2014 Four Features in One Casting<\/h2>\n
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\"WPWEKO<\/div>\n
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The WPWEKO integrates four engineering features in a single FC25 cast iron casting: a two-stage worm cascade (ratio 1\/200\u20131\/900), a through-bored H7 hollow output shaft for coupling-free shaft engagement, multi-face oil ports and reinforced bearings for vertical and multi-angle mounting, and a flanged anchor base with multiple bolt positions for rigid structural mounting.<\/p>\n\n\n\n\n\n\n\n
Feature 1<\/td>\nTwo worm-and-wheel stages in series \u2014 ratio 1\/200\u20131\/900<\/td>\n<\/tr>\n
Feature 2<\/td>\nH7 hollow bore + keyway \u2014 driven shaft direct, no coupling<\/td>\n<\/tr>\n
Feature 3<\/td>\nMulti-face oil ports + reinforced bearings \u2014 correct lubrication at any angle<\/td>\n<\/tr>\n
Feature 4<\/td>\nIntegral flanged anchor base \u2014 multiple bolt positions, precision-flat<\/td>\n<\/tr>\n
Nh\u00e0 \u1edf<\/td>\nFC25 cast iron \u2014 all four features integral to one casting<\/td>\n<\/tr>\n
Input<\/td>\nStandard solid shaft; 5 input direction positions (A\u2013E)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
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\u2705 Key Features & Benefits<\/h2>\n
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Four Features \u2014 One Product Number<\/h3>\n

Specifying the WPWEKO in place of a combination of WPEKA (hollow bore), WPEO (vertical), and WPWE (flanged base) variants eliminates three separate product decisions and replaces them with one \u2014 because no combination of simpler products can achieve all four features simultaneously in a single housing. Keywords: hollow shaft vertical flange-base double speed worm gearbox, four-feature two-stage reducer.<\/em><\/p>\n<\/div>\n

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Flanged Base for Maximum Reaction Torque Resistance<\/h3>\n

At 1\/600\u20131\/900 combined ratios, reaction torques transmitted to the mounting structure are very high. The WPWEKO flanged base distributes these forces over the largest footprint of any hollow shaft product in the WPE series \u2014 essential for offshore structural mounting and heavy marine equipment where bolt loosening under vibration cannot be tolerated.<\/p>\n<\/div>\n

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Vertical Hollow Bore \u2014 The Marine & Offshore Advantage<\/h3>\n

For offshore platform agitator drives and ship-mounted mixing systems, the WPWEKO’s hollow vertical output bore allows the agitator shaft to pass through from below with direct engagement \u2014 no coupling protruding above the gearbox to interfere with overhead clearances in confined platform spaces.<\/p>\n<\/div>\n

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\u2699\ufe0f<\/div>\n

Multi-Face Oil System \u2014 Both Stages in Any Orientation<\/h3>\n

The WPWEKO’s multi-face oil port system ensures both worm gear stages remain correctly lubricated in horizontal, vertical, and inclined mounting. For offshore and marine equipment subject to vessel motion and pitch\/roll, maintaining adequate oil immersion at both stages under dynamic conditions is critical.<\/p>\n<\/div>\n

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Self-Locking in Vertical Applications<\/h3>\n

At combined ratios \u22651\/400, the WPWEKO provides static self-locking \u2014 preventing gravity-driven reversal of connected agitator or pump shafts. Combined with the flanged base rigidity, this makes the WPWEKO a secure load-holding drive for vertical process equipment.<\/p>\n<\/div>\n

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Designed for Marine & Offshore Environments<\/h3>\n

The integral flanged base with precision-flat CMM-verified mounting surface, the four-bearing housing with reinforced vertical load capacity, and the H7 hollow bore all reflect the engineering requirements of marine and offshore applications where installation precision, structural rigidity, and mechanical simplicity are essential.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Industry Applications<\/h2>\n

The WPWEKO is the only product in the WPE series combining all four critical features for offshore, marine, and heavy structural drive applications:<\/p>\n

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Offshore Platform Drives<\/strong>Offshore oil & gas platform deck agitator drives, subsea chemical injection system auxiliaries, and offshore crane slow-speed auxiliary drives requiring hollow bore direct mounting with flanged anchor rigidity in marine structural frames.<\/span><\/div>\n

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Marine Vessel Equipment<\/strong>Ship-mounted mixing system drives, vessel deck machinery auxiliary drives, and marine desalination plant agitator drives where hollow shaft coupling-free mounting, flanged base rigidity, and multi-orientation capability are all simultaneously required.<\/span><\/div>\n

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Wind & Renewable Energy<\/strong>Offshore wind turbine pitch control auxiliary drives, tidal energy equipment slow-speed drives, and wave energy converter auxiliary mechanisms requiring compact hollow shaft high-ratio drives in marine structural installations.<\/span><\/div>\n

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Heavy Energy Infrastructure<\/strong>Large power plant cooling tower agitator slow drives, nuclear plant auxiliary systems, and heavy energy infrastructure equipment requiring all four WPWEKO features for maximum reliability and installation rigidity.<\/span><\/div>\n

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Special Chemical & Mining<\/strong>Large mineral flotation cell hollow-shaft agitator drives, hydrometallurgy leaching vessel drives, and specialty chemical vessel drives requiring combined hollow bore, vertical mounting, flanged base, and ultra-high ratio in a single unit.<\/span><\/div>\n

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Heavy Structural Equipment<\/strong>Large structural positioning drives, heavy industrial turntable slow-rotation systems, and bridge machinery auxiliary drives where all four features are required for the specific structural integration demands of the application.<\/span><\/div>\n<\/div>\n<\/section>\n

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Quality Control & Certification<\/h2>\n
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ISO 9001:2015 & CE<\/h3>\n

Full ISO 9001:2015 QMS. CE Declaration of Conformity per shipment. Third-party SGS\/BV inspection and material certs for marine classification and offshore authority compliance. Base flatness CMM verified (\u22640.05 mm TIR); bore H7 plug gauged \u2014 both on every unit.<\/p>\n<\/div>\n

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Four-Feature Verification Test<\/h3>\n

Each WPWEKO undergoes the most comprehensive inspection in the WPE series: (1) bore H7 plug gauge, (2) bore concentricity \u22640.05 mm TIR, (3) base flatness CMM scan, (4) two-stage run test in vertical orientation verifying noise (\u226475 dB(A)), seal integrity, and torque. Four checks, every unit.<\/p>\n<\/div>\n

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Marine Documentation<\/h3>\n

Material mill certificates, third-party inspection reports (SGS\/BV), CE Declaration of Conformity, and vertical orientation oil fill documentation are all available as a marine\/offshore compliance package on request. We have supplied documentation packages to offshore operators in Norway, Singapore, and the Gulf region.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Why Choose Ever-power for WPWEKO Gearboxes<\/h2>\n
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\"Ever-power<\/div>\n
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We supply WPWEKO gearboxes to offshore equipment suppliers, marine machinery manufacturers, and heavy energy industry equipment builders in Norway, Singapore, South Africa, Australia, and over 60 countries. Our four-feature verification test \u2014 the most comprehensive inspection standard in our WPE range \u2014 reflects the high stakes of offshore and marine applications where a gearbox failure is not just a production problem but a structural safety concern.<\/p>\n