Products

MHI HASEG Worm Gear Reducer SEUH Series

The MHI HASEG Worm Gear Reducer SEUH Seriesis a compact, two‑stage vertical‑shaft worm‑gear reducer designed for light‑duty applications where space is at a premium but high reduction ratios and reliable self‑locking are required. Featuring MHI HASEG’s precision Niemann tooth profile, the SEUH Series delivers smooth, quiet torque transmission, inherent back‑drive prevention, and simplified maintenance for vertical drives in automation and lifting equipment.

 

MHI HASEG Worm Gear Unit-2.png

 


Key Features

  1. Two‑Stage Vertical Shaft Design

    • Dual worm stages yield high reduction ratios (iₙ = 63 – 250) in a minimal footprint, perfect for compact vertical installations.

    • Each stage’s oil chamber and lubrication points are isolated to ensure proper gear protection under all operating conditions.

  2. Advanced Niemann Tooth Profile

    • Concave‑convex gear flanks increase contact area and maintain a robust oil film, reducing wear and friction while ensuring stable, efficient power transfer.

  3. Built‑In Self‑Locking

    • Low lead‑angle worm gears in both stages prevent back‑driving, providing mechanical holding power without external brakes—ideal for vertical load‑holding, indexing, and safety‑critical applications.

  4. Compact & Lightweight

    • The vertical arrangement minimizes overall height and footprint, making it suitable for small mixers, lift modules, rotary tables, and other space‑constrained systems.

  5. Quiet, Vibration‑Free Operation

    • Precision machining and optimized tooth geometry deliver whisper‑quiet performance and minimal vibration, supporting sensitive environments such as laboratories or clean production lines.

  6. Maintenance‑Friendly Lubrication

    • Splash lubrication using Klüber SYNTHESO HT or GH6 oil ensures continuous gear protection.

    • Oil‑level sight glasses, filler and drain plugs, and grease nipples are easily accessible, reducing downtime for routine service.

  7. JIS‑Standard Compliance

    • Housing dimensions, shaft fits, and tolerances adhere to JIS B1301‑1976, ensuring interchangeability and straightforward integration with existing equipment.


Typical Specifications

Specification

SEUH Series

Shaft Orientation Vertical (input or output)
Center Distance (mm) 100, 125, 160, 200, 225, 250, 280, 320, 360, 400, 450, 500
Reduction Ratios (iₙ) 63, 80, 100, 125, 160, 200, 250
Rated Output Torque (T₂N, Nm) 180 – 750 Nm (size‑dependent)
Max Input Speed (n₁, min⁻¹) Up to 1 800
Efficiency (η) Up to 80–85 % (two‑stage)
Lubrication Splash (Klüber SYNTHESO HT/GH6)
Housing Material Cast iron
Operating Temperature –10 °C to +40 °C
Protection Class IP54 (standard)
 

Applications

  • Vertical Lifts & Hoists: Secure, self‑locking torque for load‑holding.

  • Rotary Tables & Indexers: Precise positioning and back‑drive protection.

  • Compact Automation: High‑reduction drive in minimal space.

  • Laboratory & Medical Devices: Low‑noise, vibration‑free operation.

  • Small Mixers & Agitators: Direct vertical drive with reliable self‑locking.


Why Choose the SEUH Series?

 

  • High‑Ratio in Small Footprint: Up to 250:1 reduction in a compact vertical layout.

  • Durable & Efficient: Niemann profile and quality materials ensure long service life.

  • Safety‑Built: Inherent self‑locking eliminates unintended reverse motion.

  • Ease of Service: Accessible lubrication points and JIS‑compliant design simplify maintenance.

  • Expert Support: Backed by Melink Automation’s local service and MHI HASEG’s global engineering expertise.

For torque charts, dimensional drawings, or selection assistance, contact Melink Automation, your trusted distributor of the MHI HASEG Worm Gear Reducer SEUH Series.

 


 

MHI HASEG Worm Gear Reducer SEUH  Series Size:100~250(Output Shaft Arrangement:Left)

 

SEUH Gear Ratio: 63~250 MHI HASEG Worm Gear Reducer SEUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Left 63 SEUH100L-63 SEUH125L-63 SEUH160L-63 SEUH200L-63 SEUH225L-63 SEUH250L-63
80 SEUH100L-80 SEUH125L-80 SEUH160L-80 SEUH200L-80 SEUH225L-80 SEUH250L-80
100 SEUH100L-100 SEUH125L-100 SEUH160L-100 SEUH200L-100 SEUH225L-100 SEUH250L-100
125 SEUH100L-125 SEUH125L-125 SEUH160L-125 SEUH200L-125 SEUH225L-125 SEUH250L-125
160 SEUH100L-160 SEUH125L-160 SEUH160L-160 SEUH200L-160 SEUH225L-160 SEUH250L-160
200 SEUH100L-200 SEUH125L-200 SEUH160L-200 SEUH200L-200 SEUH225L-200 SEUH250L-200
250 SEUH100L-250 SEUH125L-250 SEUH160L-250 SEUH200L-250 SEUH225L-250 SEUH250L-250

 

MHI HASEG Worm Gear Reducer SEUH  Series Size:100~250(Output Shaft Arrangement:Right)

 

SEUH Gear Ratio: 63~250 MHI HASEG Worm Gear Reducer SEUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Right 63 SEUH100R-63 SEUH125R-63 SEUH160R-63 SEUH200R-63 SEUH225R-63 SEUH250R-63
80 SEUH100R-80 SEUH125R-80 SEUH160R-80 SEUH200R-80 SEUH225R-80 SEUH250R-80
100 SEUH100R-100 SEUH125R-100 SEUH160R-100 SEUH200R-100 SEUH225R-100 SEUH250R-100
125 SEUH100R-125 SEUH125R-125 SEUH160R-125 SEUH200R-125 SEUH225R-125 SEUH250R-125
160 SEUH100R-160 SEUH125R-160 SEUH160R-160 SEUH200R-160 SEUH225R-160 SEUH250R-160
200 SEUH100R-200 SEUH125R-200 SEUH160R-200 SEUH200R-200 SEUH225R-200 SEUH250R-200
250 SEUH100R-250 SEUH125R-250 SEUH160R-250 SEUH200R-250 SEUH225R-250 SEUH250R-250

 

SEUH Gear Ratio: 63~250 MHI HASEG Worm Gear Reducer SEUH  Series Size
100 125 160 200 225 250
  63 SEUH100B-63 SEUH125B-63 SEUH160B-63 SEUH200B-63 SEUH225B-63 SEUH250B-63
80 SEUH100B-80 SEUH125B-80 SEUH160B-80 SEUH200B-80 SEUH225B-80 SEUH250B-80
100 SEUH100B-100 SEUH125B-100 SEUH160B-100 SEUH200B-100 SEUH225B-100 SEUH250B-100
125 SEUH100B-125 SEUH125B-125 SEUH160B-125 SEUH200B-125 SEUH225B-125 SEUH250B-125
160 SEUH100B-160 SEUH125B-160 SEUH160B-160 SEUH200B-160 SEUH225B-160 SEUH250B-160
200 SEUH100B-200 SEUH125B-200 SEUH160B-200 SEUH200B-200 SEUH225B-200 SEUH250B-200
250 SEUH100B-250 SEUH125B-250 SEUH160B-250 SEUH200B-250 SEUH225B-250 SEUH250B-250

 


 

MHI HASEG Worm Gear Reducer SEUH  Series Size:280~500(Output Shaft Arrangement:Left)

 

SEUH Gear Ratio: 63~250 MHI HASEG Worm Gear Reducer SEUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Left 63 SEUH280L-63 SEUH320L-63 SEUH360L-63 SEUH400L-63 SEUH450L-63 SEUH500L-63
80 SEUH280L-80 SEUH320L-80 SEUH360L-80 SEUH400L-80 SEUH450L-80 SEUH500L-80
100 SEUH280L-100 SEUH320L-100 SEUH360L-100 SEUH400L-100 SEUH450L-100 SEUH500L-100
125 SEUH280L-125 SEUH320L-125 SEUH360L-125 SEUH400L-125 SEUH450L-125 SEUH500L-125
160 SEUH280L-160 SEUH320L-160 SEUH360L-160 SEUH400L-160 SEUH450L-160 SEUH500L-160
200 SEUH280L-200 SEUH320L-200 SEUH360L-200 SEUH400L-200 SEUH450L-200 SEUH500L-200
250 SEUH280L-250 SEUH320L-250 SEUH360L-250 SEUH400L-250 SEUH450L-250 SEUH500L-250

 

MHI HASEG Worm Gear Reducer SEUH  Series Size:280~500(Output Shaft Arrangement:Right)

 

SEUH Gear Ratio: 63~250 MHI HASEG Worm Gear Reducer SEUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Right 63 SEUH280R-63 SEUH320R-63 SEUH360R-63 SEUH400R-63 SEUH450R-63 SEUH500R-63
80 SEUH280R-80 SEUH320R-80 SEUH360R-80 SEUH400R-80 SEUH450R-80 SEUH500R-80
100 SEUH280R-100 SEUH320R-100 SEUH360R-100 SEUH400R-100 SEUH450R-100 SEUH500R-100
125 SEUH280R-125 SEUH320R-125 SEUH360R-125 SEUH400R-125 SEUH450R-125 SEUH500R-125
160 SEUH280R-160 SEUH320R-160 SEUH360R-160 SEUH400R-160 SEUH450R-160 SEUH500R-160
200 SEUH280R-200 SEUH320R-200 SEUH360R-200 SEUH400R-200 SEUH450R-200 SEUH500R-200
250 SEUH280R-250 SEUH320R-250 SEUH360R-250 SEUH400R-250 SEUH450R-250 SEUH500R-250

 

SEUH Gear Ratio: 63~250 MHI HASEG Worm Gear Reducer SEUH  Series Size
280 320 360 400 450 500
  63 SEUH280B-63 SEUH320B-63 SEUH360B-63 SEUH400B-63 SEUH450B-63 SEUH500B-63
80 SEUH280B-80 SEUH320B-80 SEUH360B-80 SEUH400B-80 SEUH450B-80 SEUH500B-80
100 SEUH280B-100 SEUH320B-100 SEUH360B-100 SEUH400B-100 SEUH450B-100 SEUH500B-100
125 SEUH280B-125 SEUH320B-125 SEUH360B-125 SEUH400B-125 SEUH450B-125 SEUH500B-125
160 SEUH280B-160 SEUH320B-160 SEUH360B-160 SEUH400B-160 SEUH450B-160 SEUH500B-160
200 SEUH280B-200 SEUH320B-200 SEUH360B-200 SEUH400B-200 SEUH450B-200 SEUH500B-200
250 SEUH280B-250 SEUH320B-250 SEUH360B-250 SEUH400B-250 SEUH450B-250 SEUH500B-250

 

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  • The MHI HASEG Worm Gear Reducer SEUH125L-63 is a high-performance, durable, and efficient gear reducer designed for various industrial applications. With its high reduction ratio, robust construction, and efficient performance, it delivers reliable operation and precise control. Supported by MHI HASEG’s extensive experience and expertise, the SEUH125L-63 is an excellent choice for demanding industrial environments.

  • The MHI HASEG Worm Gear Reducer SEUH125R-63 is a high-quality gear reducer manufactured by Mitsubishi Heavy Industries, MHI HASEG CO., LTD.. It is designed for applications requiring reliable speed reduction and torque enhancement. This model is known for its durability, efficiency, and compact design.