CH-SJGF built-in linear lifting mast

SJGF type lifting pole is a lifting mast device for professional mobile lighting equipment. The mast is fixed on or around the movable handcart, and the lamp is lifted vertically to a high altitude.

SJGF lifting mast can be selected at different heights of 2.3M, 3.5M, 4.2M, and 5.7M according to requirements. If this height cannot meet the work needs of the user, our company can customize a dedicated lifting mast for you according to the user's requirements.

Performance characteristics:

(1) High strength aluminum alloy profiles are used, and the inner wall of the cylinder body is treated with high-pressure wear-resistant ceramic technology;

(2) Select high-quality pneumatic components such as one-way valves and pilot operated two position three-way solenoid valves to ensure product quality;

(3) High level sealing performance (imported seals), with a 24-hour lifting mast sliding down less than 5mm in a stationary state.

Technical parameters:

CH-SJGF built-in linear lifting mast
	SJG-23	SJG-35	SJG-42	SJG-57
Number of sections	2	3	4	4
Closing height	1300	1528	1560	1880
Raise the height	2300	3500	4200	5700
Working pressure	≤0.30Mpa	≤0.30Mpa	≤0.30Mpa	≤0.30Mpa
Weight	≤5Kg	≤9.5Kg	≤11Kg	≤12.5Kg
Wind resistance	≤ Level 8
Top load capacity	≤15Kg	≤20Kg	≤20Kg	≤20Kg
product material	Aluminum magnesium alloy; T6 processing;
Surface treatment process	Hard oxidation; Has high corrosion resistance properties;
Color	bronze-colored
Cable specifications	1.5 square meters x 3 cores	1.5 square meters x 3 cores	1.5 square meters x 3 cores	1.5 square meters x 3 cores
Note: We can customize lifting masts with various specifications of cables according to customer needs

Ordering specifications:

SJ-35 TX (35: Rise height of 3.5 meters)

Product characteristics

Pneumatic lifting rod has the advantages of high load, low noise, fast lifting, low seismic resistance, strong self falling buffering performance, and stability

application area

It plays an important role in night rescue and emergency response at various natural disasters and sudden events. Golf, large football field night lighting.

technological process

Made of high-strength aluminum alloy, it is lightweight and meets the height and load requirements of different fields and occasions

Technical Instructions for Use

Pin self-locking is a mechanical positioning of each section of the mast based on the structural characteristics of the mast cylinder body model, using the shear force between the full-length foreign key on the outer wall of the cylinder body and the spring pin on the sleeve. The positioning effect depends on the material and cross-sectional area of the key. Due to the aluminum alloy material of the mast cylinder body and the small cross-sectional area of the key, this pin self-locking device is only suitable for small and medium-sized masts with lighter loads.

Direct pull self-locking is generally suitable for masts with an initial height below 1.6m, while diagonal pull self-locking is suitable for masts with an initial height above 1.6m.

The self-locking of the brake is achieved through the frictional force between the brake and the lifting rod, which is equivalent to the wheel and brake device. When using a self-locking mast with a brake, it is necessary to tighten the brake. The required braking force depends on the size of the load, and the tighter the rotation, the greater the braking force. In practical operation, using a torque wrench can clearly determine whether the braking force meets the load requirements. The wrench or torque wrench is an optional accessory, and the calculation method for the self-locking braking force of the brake is to use the formula for tightening torque with threads.

To tighten the torque value, Nm

The F bolt bears clamping force, N；

D thread diameter, mm; P is thread pitch, mm

The integrated brake and the separated brake can achieve the same braking effect, but the difference lies in whether the design can meet the requirements for the initial height, lifting height, and load of the mast. Under the same conditions, the initial height of the separated brake mast can be made lower or raised higher.

Product installation example: