Reducer

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

F..SZ..AD.. Series Gear Reducer thumbnail 1

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F..SZ..AD.. Series Gear Reducer

The F..SZ..AD.. Series Gear Reducer / Gearmotor is an F Series gear unit with an SZ configuration and an input shaft type. Its gear transmission provides speed reduction and mechanical power transfer, while the model range offers different dimensions for integration into conveyors, chain and screw conveyors, material transfer equipment, packaging machinery, and other industrial drive systems.

Item	Value
Model	F..SZ37–157AD1–8
Ratio Range	3.77–281.71
Input Power	0.12–200 kW
Output Torque	200–18,000 Nm
Input Type	Input Shaft Type
Model Sizes	F..SZ37/47, F..SZ57, F..SZ77, F..SZ87, F..SZ97, F..SZ107, F..SZ127, F..SZ157
Configuration Options	AD1–AD8

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Product Description

Key Technical Features & Advantages

F Series Gear Unit with SZ Configuration: The F..SZ..AD.. combines an F Series gear unit with an SZ configuration for industrial speed reduction and mechanical power transmission.
Input Shaft Type: The technical drawing identifies the F..SZ..AD.. as an input shaft type, providing the drive-side connection to the gear unit.
Multiple Model Sizes: The F..SZ37–157 range covers different housing and installation dimensions while maintaining the same basic external arrangement.
Model-Specific Dimensions: Shaft, housing, mounting, and overall dimensions vary according to the selected model size.
Double-Shaft Options: The technical drawing also indicates double-shaft versions for selected combined configurations where the equipment requires the corresponding shaft arrangement.
Technical Drawing Support: Detailed dimensional drawings are available for reviewing shaft connections, mounting dimensions, and overall installation requirements.

Product Design Configurations

F..SZ..AD.. Series: F Series gear unit with SZ configuration and input shaft type
F..SZ37/47 – F..SZ157: Multiple model sizes for different equipment dimensions
Gear Arrangement: F Series gear transmission with SZ configuration
Input Configuration: Input shaft type
External Arrangement: Common basic structure with dimensions varying by model size

Input & Output Configurations

Input Type: Input shaft
Input Shaft: Model-specific shaft dimensions and connection arrangement
Output Type: Output transmission connection according to the selected F..SZ..AD.. model
Double-Shaft Option: Available for selected combined configurations according to the technical drawing

Mounting Styles & Options

Mounting Arrangement: Model-specific mounting configuration
Input Shaft: Dimensions vary according to model size
Output Connection: Model-specific output dimensions
Installation Dimensions: Housing, shaft, mounting, and overall dimensions should be matched with the equipment layout
Technical Drawing: F..SZ37–157AD1–8 dimensional drawings provide the relevant model-specific dimensions

Motor Options & Accessories

Motor or drive-source matching according to equipment requirements
Input shaft connection arrangements
Model-specific mounting components
Double-shaft configurations for selected combined types
Installation and connection components according to the selected configuration

Primary Industrial Applications

Belt Conveyor Systems
Chain Conveyor Systems
Screw Conveyors
Material Transfer Equipment
Packaging Machinery
Production Line Machinery
General Industrial 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.