What Is The Guide Rail In Elevator?

The elevator guide rail is an elevator component composed of steel rails and connecting plates(fish plates), divided into car guide rails and counterweight guide rails.

Based on the cross-sectional shape, there are three types: T-shaped, L-shaped, and hollow.

What is the purpose of a guide rail?

The guide rail not only provides directional guidance but also bears the impact forces of the elevator car, the braking force during elevator stops, and the impact force during emergency braking by the safety gear. The magnitude of these forces depends on the elevator’s load capacity and speed, so the guide rails should be selected based on these factors. The car guide rails are typically referred to as the main rails, while the counterweight guide rails are called auxiliary rails.

Elevator guide rails are divided into 3 categories:
Solid guide rail
Hollow guide rail
Escalator guide rail

Elevator guide rail installation

1.Each guide rail must have at least two guide rail brackets, with spacing between them ranging from 2 to 2.5 meters. In special cases, measures must be taken to ensure that the installation of the guide rails meets the bending strength requirements specified in GB7588-2003. The horizontal alignment of the guide rail brackets should not exceed 1.5%. The anchor bolts for the guide rail brackets or the embedded depth of the brackets should be no less than 120 mm. If welded brackets are used, the weld seams must be continuous and securely welded on both sides.

2.When the elevator reaches the top, the guide shoes must not come off the rails.

3.The deviation of the working surface of each guide rail from the installation reference line should not exceed the following values for every 5 meters: for counterweight guide rails with safety gears, the deviation should be no more than 0.6 mm; for T-shaped counterweight guide rails without safety gears, the deviation should be no more than 1.0 mm.

4.The guide rail should be fixed to the guide rail frame using pressure plates, and welding or direct connection should not be used.

5.The deviation in the distance between the top surfaces of the two guide rails should be: for the elevator car, +2 mm to 0 mm; for the counterweight guide rails, +3 mm to 0 mm.

6.When a reference installation line is provided, each guide rail should be checked relative to the reference line, and the maximum deviation value should be recorded.

There are many specifications of solid guide rails.
According to the weight per meter, they can be divided into:
8K, 13K, 18K, 24K, 30K, 50K, etc.

According to the width of the bottom plate, they can be divided into:
T45, T50, T70, T75, T78, T82, T89, T90, T114 , T127, T140, etc.

Hollow guide rails can be divided into TK3 and TK5 or TK5 and TK5A, according to the weight per meter and face shape.

Elevator guide rail model size specification table

Model No	Screw	Guide Rail Clip	Fish Plate	Guide Rail Size
T45/A	M8*25	8k	160*50*8mm	45mm*45mm*5mm
T50/A	M8*25	8k	200*50*8mm	50mm*50mm*5mm
T70-1/B	M12*35	8k	250*70*10mm	70mm*65mm*9mm
T75-3/B	M12*35	8k	240*75*10mm	75mm*62mm*10mm
T78/B	M12*35	8k	240*75*10mm	78mm*56mm*10mm
T82/B	M12*35	13k	216*80*10mm	82.5mm*68.25mm*9mm
T89/B	M12*40	13k	305*90*13mm	89mm*62mm*16mm
T90/B	M12*40	13k	305*90*13mm	90mm*75mm*16mm
T114/B	M16*50	18k	305*120*18mm	114mm*89mm*16mm
T127-2/B	M16*55	24k	305*130*18mm	127mm*89mm*16mm
Our company specializes in producing various of elevator guide rails, connecting fish plates, guide rail clips.etc. All models of elevator guide rails have been tested and meet industry standards! The main product models of our company are as follows: Cold drawn T-shaped guide rail: Such as T45/A, T50/A, T70/A. Machined T-shaped guide rails: T70-1/B, T75-3/B, T78/B, T82/B, T89/B, T90/B, T114/B, T127-2/B, T127-1/B Hollow guide rail: TK5, TK5A, TK3. Other non-standard dimensions can be determined based on the provided drawings. Welcome to contact us.

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