Electric Motor for Elevator / Geared Traction Machine Motor

• Customization: Available
• After-sales Service: with
• Warranty: 12 Months
• Model NO.: SN-TMYJ250B
• Driving Type: AC Elevator
• Capacity: 1000-3000 Kg
• Persons: 11 - 19
• Speed: 1.0-1.26 M/S
• Control Mode: Group Control
• Position of Computer Room: Without Computer Room
• Elevator Door: Center Opening Door
• Door Knife: Single
• Deceleration Device: Without Deceleration Device
• Attendant: Without Attendant
• Weight: 800 Kg
• Brake: DC110V,1.1A
• Ratio: 61:2
• Product Name: Geared Traction Machine Motor
• Transport Package: in Carton Box
• Trademark: Sunny
• Origin: China
• Production Capacity: 5000 PCS/ Month
• Package Size: 145.00cm * 68.00cm * 88.00cm
• Package Gross Weight: 800.000kg

Product Description

Elevator geared traction machine SN-TMYJ250B

· 1:1-1000~1600Kg,1.0~1.26m/s

2:1-2000~3000Kg,0.5~0.63m/s

· Max.Load of traction sheave shaft:8780Kg

· Control:VVVF

· Brake:DC110V,1.1A

· Weight:800Kg

· Sheave position:Left

Roping	Load(kg)	Speed(m/s)	Sheave Diam-Rope Diam x Groove No.-Groove Pitch (mm)	Power(Kw)	Ratio	Hz	Pole	Speed (r/min)	Current(A)
1:1	1000	1	Ø610-Ø13x5-20	11	61:2	50	6	955	24
	1600	1	Ø640-Ø16x5-23/25	15	63:2	50	6	940	32
	1600	1.26		18.5	63:2	40	4	1184	35.5
2:1	2000	0.5	Ø610-Ø13x5-20	11	61:2	50	6	955	24
	2000	0.63		13	61:2	41	4	1203	25
	3000	0.5	Ø640-Ø16x5-23/25	15	63:2	50	6	940	40
	3000	0.63		18.5	63:2	40	4	1184	35.5

Description
An elevator geared traction machine is a key component in traditional traction elevator systems, responsible for lifting and lowering the elevator car via a steel rope system. It consists of an electric motor (typically AC or DC), a gearbox (worm or helical gear), a traction sheave, and a brake assembly.

The gearbox reduces the motor's high-speed rotation to a lower, more controllable speed, increasing torque for smooth elevator movement. The traction sheave grips the hoist ropes, utilizing friction to move the car and counterweight. Geared machines are commonly used in mid-rise buildings (up to ~30 floors) due to their balance of power, efficiency, and cost-effectiveness.
Key Features:

    Motor: Usually 3-phase AC (or DC for older models) with variable frequency drives (VFDs) for speed control.

    Gear Type: Worm gears dominate for compactness and self-locking safety; helical gears offer higher efficiency.

    Brake: Electromagnetic fail-safe brake holds the elevator during stops.

    Load Capacity: Typically handles 500-5,000 kg at speeds of 0.5-2.5 m/s.

Advantages:

    Lower initial cost vs. gearless machines.

    Reliable for moderate-speed applications.

    Compact design suits machine-room installations.

Disadvantages:

    Slightly lower energy efficiency (~55-70%) due to gear friction.

    Regular lubrication and gear maintenance required.

Geared traction machines remain a popular choice for commercial and residential elevators where cost and space are considerations. For high-speed or high-rise applications, gearless machines are preferred.

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Why choose us?
Shanghai Sunny Elevator Co., Ltd, founded in 1992, is a 33-year professional manufacturer specializing in designing and producting Opto-Electro-Mechanical products.
Sunny Elevator has started import and export since 2012.
We have experience in exporting all kinds of elevator parts and complete elevator to 80 countries all over the world.

FAQ
1. Are the elevator wire ropes durable?
The elevator wire rope has special provisions and requirements. Configuration is not only for wire rope and rated load, but also considered the size of the traction, as a result, the tensile strength of wire rope is greater than the weight of the lift. The safety factor is equipped with more than four wire rope. So it won't break at the same time.
2. Is it dangerous for power failure suddenly during the elevator running?
If it occurs, the elevator will automatically stop due to the electrical and mechanical safety device. In case of power failure,elevator brakes will automatically taken. In addition, the power supply departments such as planned outage, prior notice are also operating.
3. Will us be hurt when it closed suddenly?
In the closing process, if people touch the hall door, the door of elevator will automatically restart without any danger. With anti clamping switch, once the gate touched, this switching action make the elevator unable to be closed and even reopened. In addition, closing force is also available here.
4. How the elevator running?
Elevators are operated with a counterweight wire rope through the (tractor) traction drive, making ups and downs on the guide rail.
5. Is the escalator installation complicated?
We believe the functions of an escalator are not necessarily proportional to the operation complexity. Therefore, escalators designed by us apply an integrated structure, so that the equipment is more precise and more efficient and allows easier and more convenient commissioning.
6. Do you have any cerifications?
Yes, we do with ISO9001 / CCC / CE Certificates for u.