Compact S Series Worm Gearmotor, Low Noise Design for Conveyor Systems

• Customization: Available
• Application: Motor
• Function: Change Drive Torque, Speed Changing, Speed Reduction
• Model NO.: S-series reducer
• Layout: Coaxial
• Hardness: Hardened Tooth Surface
• Installation: Horizontal Type
• Step: Three-Step
• Type: Cylindrical Gear Box
• Transmission Ratio Range: 6.8:1 - 286.4:1
• Rated Input Power: 0.12 Kw - 160 Kw
• Rated Output Torque: 90 N·M - 4000 N·M
• Input Speed: Max. 3,000 Rpm
• Transport Package: Standard Export Wood Packing
• Specification: 50*30*30cm
• Trademark: Xinkai
• Origin: China
• HS Code: 84834020
• Production Capacity: 5000 PCS/Year
• Package Size: 50.00cm * 80.00cm * 50.00cm
• Package Gross Weight: 30.000kg

Product Description

S Series Gearbox: Versatile, High-Performance Solutions for Industrial Drive

The S Series Gearbox, also widely recognized as the S-series reducer, stands as a cornerstone in industrial power transmission, offering a comprehensive product lineup tailored to diverse application needs. At the core of this series lies the S Series Helical Gear Reducer, engineered with precision helical gears to deliver smooth operation and exceptional efficiency, while the Helical Worm Gear Reducer combines helical and worm gear technologies for optimal speed reduction and torque amplification. For integrated motor-reducer solutions, we also provide the Worm Gearmotor and Helical Worm Gearmotor, seamlessly merging power and reduction functions to simplify installation and enhance system reliability

Designed for flexibility, the S Series Gearbox family includes versatile mounting options: the Flange Mounted Gearmotor for space-saving, fixed installations and the Foot Mounted Reducer for stable, ground-based setups, ensuring compatibility with various industrial equipment layouts. Performance is non-negotiable with this series—each unit is crafted to be a High torque reducer, capable of handling heavy-duty loads across metallurgical, automotive, construction, and light industrial sectors. Additionally, advanced manufacturing techniques and precision engineering make the S Series a Low Noise Gearbox, minimizing operational noise for a quieter, more efficient workplace

Whether you need a standalone S-series reducer, an integrated Helical Worm Gearmotor, or a specialized Flange Mounted Gearmotor, the S Series Gearbox delivers consistent performance, durability, and adaptability. It's the trusted choice for businesses seeking reliable speed reduction solutions that balance power, efficiency, and ease of use.

Specification

S Series Gearbox - Technical Specification

1. Model Range
Core Models: S37, S47, S57, S67, S77, S87, S97 (corresponding to S-series reducer variants)
Integrated Motor Models: S-Series Helical Worm Gearmotor, Worm Gearmotor (compatible with IEC standard motors)
2. Transmission Parameters
Gear Type: Helical gear (S Series Helical Gear Reducer), Helical worm combination (Helical Worm Gear Reducer)
Transmission Ratio Range: 6.8:1 - 286.4:1 (single-stage to multi-stage combinations)
Rated Input Power: 0.12 kW - 160 kW
Rated Output Torque: 90 N·m - 4000 N·m (High torque reducer performance)
Input Speed: Max. 3,000 rpm (suitable for standard industrial motor matching)
3. Structural & Installation Details
Mounting Types:
Foot Mounted Reducer (B3 standard)
Flange Mounted Gearmotor (B5, B14 flange options)
Optional torque arm mounting for belt/pulley applications
Housing Material: High-strength cast iron (GG20/GG25) or aluminum alloy (for small models)
Shaft Material: Alloy steel (42CrMo) with quenching and tempering treatment
Seal Type: Double-lip oil seal + labyrinth seal, IP54 protection class (IP65 optional)
4. Performance Features
Noise Level: ≤ 75 dB(A) at rated load (Low Noise Gearbox standard)
Efficiency: 92% - 97% (helical gear models); 85% - 90% (helical worm models)
Operating Temperature: -10℃ to +40℃ (ambient), -20℃ to +50℃ with special lubricant
Lubrication: Mineral oil (ISO VG 220/320) or synthetic oil for extreme conditions

Speed Ratio Range and Maximum Torque
Model Number	37	47	57	67	77	87	97
Configuration Type	SD\SF
Transmission Ratio	6.80~157.43	7.28~201	7.28~201	7 56~217.41	8.06~256.47	7.88~288	8.26~286.4
Maximum Torque (N.m)	90	170	300	520	1270	2280	4000

Company Profile

Shanxi Pingyao Reducer Co., LTD.

Since 1958, Shanxi Pingyao Reducer Co., LTD., affectionately known as Shanxi Pingyao Reducer Factory, has been a trailblazer in the industrial arena. With a distinguished legacy in research, development, manufacturing, and sales, we have established ourselves as specialists in crafting an extensive range of reducers and electric rollers. Our commitment to unparalleled quality and innovation is evidenced by our prestigious certifications, including ISO9001 for impeccable quality management, ISO14001 for our proactive environmental preservation, and OHSAS18001, ensuring exceptional occupational health and safety standards. Our products proudly feature the esteemed American Association certification and the national mining products coal mine safety mark certification, underscoring our commitment to safety and reliability. As a key player in China's industrial sector and a beacon of innovation in Shanxi Province, our 'Xinkai' trademark is recognized as a China Famous Trademark, testifying to our relentless pursuit of excellence and pioneering spirit.

Possess strong production, manufacturing, and design capabilities.

Step into our spacious, well-equipped factory, and you'll witness firsthand our unmatched capabilities in manufacturing and designing top-tier reducers.
With advanced machining equipment, orderly production lines, and a team of skilled engineers and technicians, we excel in producing high-precision reducers like the Gear Box Reducer for Oil Pumping Unit and other industrial transmission solutions. Our facility is designed for efficiency—from raw material processing to final product assembly, every stage reflects our commitment to quality and scale.
Beyond manufacturing, our robust R&D team drives innovation. We continuously refine designs, develop new models, and customize solutions to meet diverse industrial needs, whether for standard series or bespoke reducer systems.
Choose us, and you're partnering with a factory that combines strong manufacturing prowess with cutting-edge design research—ensuring your operations get reliable, high-performance reducers every time.

Our Advantages

At Shanxi Pingyao Reducer Co., Ltd., we proudly uphold superior standards of quality control, ground-breaking product innovation, and unmatched after-sales support. Our unwavering dedication to scientific research drives us to continuously augment our capabilities and resources. We offer an extensive range of high-performance products, such as the extraordinary double arc herringbone gear reducer, along with the robust ZDY, ZLY, ZSY hard tooth surface cylindrical gear reducers, the innovative DBY, DCY conical cylindrical gear reducers, the efficient cycloidal pin wheel reducers, the advanced NGW planetary gear reducers, and the formidable JS mining high-power reducer. Our impressive portfolio features over 20 series and more than 3,000 meticulously engineered specifications, crafted to cater to a wide array of industry needs, including electric rollers.

FAQ

S Series Gearbox - Technical Specification

1. 
Q:What information do I need to provide to request a customized S Series Gearbox
A:To initiate a customized order, please share the following key details: 1 Required transmission ratio, rated torque, and input/output speed;2 Motor specifications (power, voltage, mounting type);3 Desired installation method (foot/flange/torque arm); 4 Special environmental conditions (temperature range, humidity, corrosion risks);  5 Any additional functional requirements (e.g., IP65 protection, low-noise enhancement). With this information, our engineering team can quickly draft a customized solution and provide a detailed quote.

2
Q:Does the 12-month warranty cover wear parts of the S Series Gearbox, such as seals or lubricants
A:The 12-month quality guarantee primarily covers manufacturing defects in core components (gears, shafts, housings, and motor assemblies for integrated gearmotors). Wear parts like seals, bearings, or lubricants are excluded from the warranty, as their lifespan depends on usage frequency, operating conditions, and maintenance practices. However, we provide free replacement of wear parts within the warranty period if the damage is caused by a defect in the original material or workmanship—our after-sales team will verify the cause and offer appropriate support.

3
Q:How long does the lead time take for customized S Series Gearbox orders
A:The lead time for customized S Series Gearbox typically ranges from 2-4 weeks, depending on the complexity of your customization requirements (e.g., special gear ratios, non-standard materials, or additional modifications). For standard configurations, the lead time is 3-7 working days. We will provide a detailed delivery timeline after confirming your customization plan.

4,
Q: Can the S Series Gearbox be directly paired with IEC standard motors?
A: Yes, it is designed with IEC standard input flanges for easy and direct coupling with IEC metric motors, simplifying integration and reducing assembly time.

5,
Q: What lubrication is required, and what are the maintenance intervals?
A: It is typically factory-filled with synthetic or mineral gear oil. Initial oil change is recommended after the first 500 hours of operation, followed by periodic changes every 4,000–6,000 hours, depending on operating conditions.