Reducer

Focusing on the design, manufacturing processes, heat treatment techniques, and key quality control points for all types of standard and non-standard gears.

KAT Series Gear Reducer

The KAT Series is a KA Series derived configuration with an additional torque arm for applications requiring controlled torque reaction and supported installation. It can be used in conveyors, material handling equipment, automated machinery, and other industrial drive systems.

Item	Value
Model	KAT37–KAT157
Ratio Range	1.1–197.37
Motor Power	0.18–160 kW
Output Torque	Up to 18,000 Nm
Mounting Type	Torque Arm / Shaft Mounted
Output Shaft	Solid / Hollow Shaft

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Product Description

Key Technical Features & Advantages

Right-Angle Transmission: Compact 90° drive layout for space-efficient equipment integration.
Compact & Robust Housing: Rigid gearbox construction for reliable industrial operation.
Torque Arm Design: Torque arm provides stable support and absorbs reaction torque during operation.
Flexible Mounting: Supports C-side and D-side installationfor different machine layouts.
Wide Size Range: Available from KAT37 to KAT157for different drive requirements.
Easy Equipment Integration: Multiple mounting and shaft configurations facilitate installation with conveyors and other industrial machinery.
Reliable Industrial Performance: Designed for continuous-duty mechanical transmission applications.

Product Design Configurations

KAT Series: Compact right-angle industrial gear reducer designed for space-efficient power transmission.
KAT37 – KAT107: Standard frame sizes covering a broad range of industrial drive applications.
KAT127 – KAT157: Larger frame configurations designed for higher-capacity drive applications.
Frame Sizes:KAT37,KAT47,KAT57,KAT67,KAT77,KAT87,KAT97,KAT107,KAT127,KAT157
Gearbox Structure: Rigid enclosed housing with integrated mounting interfaces.
Drive Layout: Right-angle transmission arrangement.
Installation Structure: Torque-arm supported mounting configuration.

Input & Output Configurations

Output Configuration: Shaft output suitable for direct connection to driven machinery.
Torque Arm Output Support: Torque-arm mounting provides mechanical support and controls gearbox reaction torque during operation.
Input Configuration:

Electric motor drive
Standard motor connection
Customized motor/input arrangements according to application requirements
Shaft & Mounting Interfaces: Different dimensional configurations are available across KAT37–KAT157 to accommodate various equipment requirements.

Mounting Styles & Options

C-Side Installation: The KAT dimensional drawing specifies a C-side mounting configuration for flexible equipment integration.
D-Side Installation: D-side mounting provides an alternative installation orientation when required by the machine structure.
Torque Arm Mounting: The torque arm is positioned below the gearbox and provides structural support during operation.
Multiple Mounting Positions: The available C/D mounting arrangements allow the reducer to be installed according to available machine space and driven-equipment configuration.
Mounting Hardware: The dimensional drawing identifies bolt and nut positions associated with the torque-arm installation; bolts and nuts are prepared by the customer according to the supplied specification.
Frame Size Selection: Mounting dimensions vary according to frame size from KAT37 to KAT157.

Motor Options & Accessories

Electric motor matching
Torque arm assemblies
Mounting hardware
Motor adapters
Thermal protection
Forced cooling fans
Mechanical brakes
Encoders

Primary Industrial Applications

Conveyor Systems
Belt Conveyor Equipment
Material Handling Machinery
Bulk Material Handling
Packaging Machinery
Feeding Machinery
Transfer Equipment
Warehouse & Logistics Systems
Automated Production Lines
Industrial Processing Equipment
Mixing & Agitation Equipment
General Mechanical Drive Systems

Our Core Strengths

Standardized Production Process Flow

Raw Material Forging & Normalizing
Premium alloy steel (20CrMnTi / 40Cr) forgings undergo strict normalizing and ultrasonic flaw detection to eliminate internal stress, optimize grain structure, and ensure superior core impact resistance.

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Precision CNC Machining & Gear Hobbing
Multi-axis CNC lathes complete high-precision turning of reference datums and end faces. High-speed CNC gear hobbing and shaping machines precisely form the initial tooth profile with strict geometric allowances.
Controlled Carburizing & Heat Treatment
Processed in multi-purpose atmosphere-controlled furnace lines. Surface carburizing and quenching achieve a wear-resistant surface hardness of HRC 58–62, while preserving tough, shock-absorbing cores.

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High-Precision CNC Gear Grinding
Advanced CNC profile gear grinding machines eliminate heat-treatment micro-distortions. Tooth flanks are precisely modified with crowning to achieve DIN Class 5–6 accuracy, ensuring whisper-quiet running.
Housing Machining & Clean Modular Assembly
Gearbox housings are machined on CNC horizontal machining centers for micron-level bore concentricity. Assembled in a clean workshop with top-tier bearings (SKF/NSK/C&U) and dual-lip oil seals to guarantee zero oil leakage.

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100% Comprehensive Testing & Export Packaging
Every unit undergoes 100% full inspection: gear measurement center (CMM), dynamic running test (vibration, noise, temperature rise) and sealing test before multi-layer anti-rust film and solid plywood case packaging.

Core Advantage

Ultra-Silent Transmission

High-precision gear grinding delivers tooth surface roughness as low as Ra 0.4, with tight meshing, low vibration and noise for smoother equipment operation.

Extended Service Life

Premium materials matched with precise heat treatment ensure wear-resistant tooth surfaces and impact-resistant core, cutting maintenance and replacement costs.

All-Condition Adaptation

Custom solutions for high-speed heavy load, corrosion resistance and food-grade scenarios, eliminating trial-and-error costs in product selection.

Cost-Effective & Reliable Delivery

Scaled production supports tiered pricing for bulk orders with consistent quality; full-process control guarantees stable lead time and complete after-sales support.

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Logistics and After-Sales Service

Global Logistics & Export Packaging

VCI Anti-Rust & Solid Plywood Packaging

Internal VCI vacuum anti-rust packaging combined with seaworthy, non-fumigation plywood crates to guarantee zero corrosion during long ocean transit.

Flexible Multi-Modal Shipping

Supporting Sea Freight, Air Cargo, and Railway Express (FOB, CIF, DDP/DDU) with real-time tracking for punctual delivery.

Complete Export Documentation

Full clearance support including Certificate of Origin (CO/Form E), CE certificates, and factory dynamic test reports.

After-Sales Service & Technical Warranty

12-Month Full Quality Warranty

100% free replacement or repair for any manufacturing-related defects under standard operating conditions within 12 months.

24/7 Rapid Engineering Support

Professional technical team provides 2-hour response for model selection, installation guidance, and troubleshooting.

Lifetime Spare Parts Availability

Sufficient inventory of standardized modular parts (gears, shafts, seals, bearings) ensuring rapid worldwide dispatch.

Frequently Asked Questions (FAQ)

Can your gearboxes directly replace international brands like SEW, Flender, or Bonfiglioli?

Yes. Our modular gearboxes (R, F, K, S series and planetary units) are designed to standard international mounting dimensions. They can achieve 1:1 direct interchangeability in mounting hole positions, shaft diameters, input flanges, and gear ratios without modifying your existing machinery.

What technical parameters do I need to provide to select the right gearbox?

To help our engineering team calculate the ideal model, please provide: input motor power (kW/HP), input/output speed (RPM) or gear ratio, required output torque (Nm), mounting position (horizontal/vertical), and the specific application or working environment.

What is the typical lead time for standard and customized gearboxes?

For standard modular models (R/F/K/S series and cycloidal gearboxes), lead time is typically 7–15 days. For customized units with special ratios, shafts, or special flanges, lead time is usually 20–30 days. Emergency spare parts are dispatched within 48 hours.

How do you guarantee zero oil leakage and transmission durability?

All gearboxes utilize precision-machined CNC housings for micro-level bore concentricity, premium dual-lip skeleton oil seals, and top-tier bearings (SKF/NSK/C&U). Every unit undergoes a 100% dynamic running test (vibration, noise, temperature rise) and sealing test before export packing.

What is your MOQ, warranty policy, and do you supply test reports?

Our MOQ is 1 unit (sample order supported). All products come with a 12-month comprehensive warranty. Each shipment can be provided with full documentation, including dynamic test records, material certificates, CMM gear inspection reports, and CE/ISO compliance certificates.