CH Sjg high-power high position built-in wire series lifting mast


The SJG high-level built-in cable series lifting mast is a lifting mast device for professional vehicle mounted mobile lighting equipment. The mast is fixed on the roof or around the body of the vehicle, vertically lifting equipment such as lighting fixtures, cameras, antennas, etc. to achieve the customer's predetermined function.
The SJG high-level built-in cable series lifting mast can be freely selected from different heights of 3.5m-7.5m 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) Using high-strength aluminum alloy profiles, the inner wall of the cylinder body is treated with high-pressure wear-resistant ceramic technology, and the outer circle of the cylinder body is sandblasted and anodized.
(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 10mm in a stationary state.
(4) The equipment control line and power line are fixed inside the lifting mast, realizing the internal wiring of the lifting mast, which further improves the aesthetics and performance.


Ordering specifications:
SJ-55 TX-FAB (55: lifting height 5.5 meters FA: upper flange FB: lower flange FAB: upper and lower flange)
Technical parameters:




CH Sjg high-power high position built-in wire series lifting mast
Model	Number of sections	Raise the height	Closing height	installation height	Top installation hole	pipe diameter	Kgs	Circular tray mounting hole, chassis mounting hole A3mm	Circular tray mounting hole, chassis mounting hole A4mm
		L1 mm	L2 mm	L3 mm	A1 mm	A2 mm	Kg
SJG40-1	3	4000	2069	1875	65	113	100	160	190
SJG55-1	4	5500	1894	1635	65	133	100	200	230
SJG55-2	4		1972	1725	65	133	100	200	230
SJG55-3	4		2408	2136	65	133	100	200	230
SJG60-1	4	6000	2392	2145	65	133	80	200	230
SJG65-1	5	6500	2160	1760	65	160	80	200	230
SJG65-2	5		2019	1716	65	160	100	200	230
SJG70-1	5	7000	2025	1725	65	160	80	200	230
SJG70-2	5		2097	1935	85	190	120	200	230
SJG72-1	5	7200	2172	1872	65	160	100	200	230
SJG79-1	4	7900	2659	2425	85	160	120	200	230
Note: We can customize lifting masts with various specifications of cables according to customer requirements

Product characteristics of pneumatic lifting rod

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.

Application example: