GUOMAO
Jiangsu Guomao Reducer Co., Ltd.
China's largest reducer manufacturer. Over 8 million GUOMAO reducers are in use worldwide. Full product range from compact gearmotors to heavy-duty industrial gear units and planetary drives.
Gearboxes
GX Planetary Gearboxes
Engineering planetary gearboxes for heavy machinery. High torque in compact dimensions. Power 0.37–12,000 kW, torque up to 2,600 kN·m, ratio 25–4,000. Single, two, three and four-stage modules.
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Industrial Gear Units
Heavy-duty HB series industrial gear units. Load capacity per GB/T3480, DIN 3990, ISO 6336. Power 4–6,000 kW, torque up to 950 kN·m, ratio 1.25–450. High bearing capacity, long service life.
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Crane Reducers
Specialized cylindrical reducers for overhead, gantry and port cranes. Power 9.5–1,750 kW, torque up to 355 kN·m, ratio 16–400. High reliability under intensive operation and frequent reversing.
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Single-Screw Extruder Reducers
High-precision reducers for single-screw plastic extruders (screw diameter 30–250 mm). Designed per JB/T8853-2001. Case-hardened, quenched and ground gears HRC 54–62, oversized thrust bearing on hollow output shaft handles screw axial load. Frames ZLYJ112–ZLYJ560, ratio 6.3–20, input speed up to 1,500 rpm. Forced-circulation lubrication on ZLYJ280 and above.
Modular High-Power Reducers
GM series modular industrial reducers for heavy-duty applications. Helical and bevel-helical variants, wide ratio range, multiple mounting and output shaft options. Case-hardened, ground gears.
GTN Planetary Gear Reducers
Compact planetary gear reducers for small and medium power. High torsional stiffness, modular design. Power 0.25–20 kW, torque up to 250 kN·m, ratio 3.4–290.
HE Horizontal Industrial Gear Units
HE series horizontal modular industrial gear units. Complement the HB range for parallel-shaft and bevel-helical high-torque applications. Load capacity per ISO 6336, DIN 3990.
JE Extruder Reducers
High-load JE series reducers for single-screw plastic and rubber extruders. Extended power range over ZLYJ. Reinforced thrust bearings handle screw axial load, case-hardened ground gears, forced-circulation lubrication.
Compact Cycloidal Speed Reducers
Compact cycloidal reducers with integrated motor. XWD — horizontal foot-mounted, XLD — vertical flange-mounted. Smaller frame sizes than BLD/BWD. Ratio 9–87 (single-stage) up to 7,569 (two-stage). Constant tooth engagement, high overload capacity.
Low-Speed Planetary Drives
Low-speed high-power planetary drives for mills, rotary kilns and heavy mining equipment. Three and four-stage, high torque on low-speed shaft.
Mill Reducers
Specialized reducers for vertical roller and ball mills. High radial and axial load capacity on output shaft. For cement plants, mining and metallurgy enterprises.
Twin-Screw Extruder Reducers
Special reducers for conical twin-screw plastic and rubber extruders. Reduction box and distribution box combined in single housing. Torque transmission to two parallel screws, integrated thrust bearings. SZ — for PVC lines, SZL — extended centre distance.
Cylindrical Gear Reducers
Parallel-shaft cylindrical gear reducers. Gears made of high-strength low-carbon alloy steel, carburized, quenched and ground. Variants: ZDY (1-stage), ZLY (2-stage), ZSY (3-stage), ZFY (4-stage).
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Bevel-Cylindrical Gear Reducers
Heavy-duty bevel-cylindrical reducers. DBY — two-stage (one bevel + one helical), DCY — three-stage (one bevel + two helical). Case-hardened, ground gears. For conveyors, mills, heavy machinery.
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GTX Planetary Gear Reducers
GTX series planetary gear reducers for medium and heavy loads. Compact coaxial design, modular execution, quick-release flanges. High specific torque per weight.
Gear Motors
Helical Geared Motors
Helical geared motors with small eccentricity of input and output shafts. Single, two or three-stage. Modular design, low noise, high efficiency. Power 0.12–160 kW, torque up to 36.6 kN·m, ratio 1.3–26,995. SEW R series equivalent.
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Helical-Bevel Geared Motors
Helical-bevel geared motors with perpendicular shaft arrangement. Two-stage helical plus one-stage bevel gear. Power 0.12–200 kW, torque up to 50 kN·m. SEW K series equivalent.
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Parallel-Shaft Helical Geared Motors
Parallel-shaft geared motors with two or three stages of helical gears. Hollow or solid output shaft options. Power 0.12–110 kW, torque up to 18 kN·m. SEW F series equivalent.
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Helical-Worm Geared Motors
Combined helical-worm geared motors with perpendicular shafts. Compact design, wide ratio range. Power 0.12–30 kW, torque up to 6.5 kN·m. SEW S series equivalent.
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Extended-Range Helical Geared Motors
GR series modification with additional primary reduction stage for extended gear ratio range. Enables low output speeds while maintaining modular design. Frame sizes 39–149.
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Cycloidal Gearmotors
Cycloidal gearmotors with direct-coupled integrated motor. BLD — flange-mount vertical, BWD — foot-mount horizontal. Planetary principle with small tooth difference, single-stage efficiency over 90 %. Power 0.12–90 kW, torque up to 30 kN·m, ratio 7–87 (single-stage) up to 650,000 (multi-stage).
FAQ — GUOMAO
What equipment does SDS supply from GUOMAO?
SDS delivers the full GUOMAO product range including gearboxes and gear motors. Detailed series, sizes and technical specifications are available on this page; full PDF catalogues can be downloaded from the Catalogues section.
In which industries is GUOMAO equipment used?
GUOMAO equipment is applied in metallurgy, cement industry, mining & mineral processing and crane manufacturing and other industries. We select a specific model for your duty cycle, load profile, working environment and ambient conditions.
What is the warranty and lead time for GUOMAO?
Standard manufacturer warranty — 12 months from commissioning, no more than 18 months from shipment. Production lead time is 4–16 weeks depending on specification (the equipment is manufactured in China, Jiangsu Province, Changzhou). Delivery to Russia is by road transport. Detailed terms are on the Terms of Cooperation page.
How to order GUOMAO equipment from SDS?
Send a technical request with operating parameters and requirements. Within one business day we prepare a technical-commercial proposal with firm pricing and delivery schedule. Default Incoterms — DDP (with EAEU certification and customs clearance included).
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