Product Details

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18m 20m 21m 25m telescopic mechanical mast tower crane mast section,heavy-duty telescopic mast

Product Description

18m 20m 21m 25m telescopic mechanical mast tower crane mast section,heavy-duty telescopic mast

technical data
main spec.	Closed length:2.2m-3.4m (Bottom base included) Extended length: 12m-25m (Bottom base included) Self weight:around 28kg-72kg Max loading:10kg or customized Temperature: working temp:-40--+50C Storage Temp:-55--+70C
main pole in sections	Section No. OD Thickness Length 1#： 30mm 2.0mm 2.2m 2#： 40mm 2.0mm 2.2m 3#： 50mm 2.0mm 2.2m 4#： 60mm 2.0mm 2.2m 5#： 70mm 2.0mm 2.2m 6#： 80mm 2.0mm 2.2m 7#： 90mm 2.0mm 2.2m 8# 105mm 2.5mm 2.2m for 15m mast with payload 10kg and 20kg
Bottom base	diameter: 180mm Thickness: 12mm
Accessories	Pulling cord box with handle bars------------------3 units Ground anchor------------------------------------------3 pieces Handle lifting bar---------------------------------------2 pieces 304 stainless steel stakes-------------------------------6 pieces Tripod -----------------------------------------------------1 piece Top plate---------------------------------------------------1 piece
Material	Main Pole: aluminum alloy Bottom base and accessories(except the stakes): iron steel Pulling cord: stainless steel wire(OD:2mm)
Color	the whole unit will be in army green when closed, but when extended, the main pole will be in origin color of aluminum alloy only with top 4cm of each pole section in army green color.Technology: painting

accessories

Pulling cord box with handle bars------------------3 units
Ground anchor------------------------------------------3 pieces
Handle lifting bar---------------------------------------2 pieces
304 stainless steel stakes-------------------------------6 pieces
Tripod -----------------------------------------------------1 piece
Top plate---------------------------------------------------1 piece

Packing & Delivery

18m 20m 21m 25m telescopic mechanical mast tower crane mast section,heavy-duty telescopic mast

package
carton packed	normal package is carton for the extended height less than 9m, weight less than 70kg mast, also can be plywood case at customers request
plywood packed	normal package is plywood case for extended height more than 10m, weight more than 70kg mast

After-sale service

Except the damages due to misuse,unauthorized modification and man-made sabotage,
the damaged of the telescopic mast will enjoyed free after-sales maintenance
within one year time from the date of delivery on the condition that the buyer
himself will bear the shipping cost back and forth and the said damage should be
confirmed by the seller through photos and description

Installation Instructions:
1.if mount mast on vehicle,just need car clamps to fix. If mount on ground,fix the base and tripod with stainless steel stakes,
2.Determine the mounting position of telescopic mast if manual and motorized mast hitting one ground anchor per 120 degrees. If pneumatic mast in 90 degree to fix the Guy rope.
3.Mount lifting handle bar to raise up manual mast. If pneumatic or motorized, use air compressors/foot pump and motor. But if motorized one, hand crank also work.

Maintenance
1.Waterproof and dust proof cover should be put into outdoor storage
2.If there is a situation that is not smooth or obvious noise during lifting mast,add lubricating
oil to make sure inner Mechanical parts work well. Suggest to add oil to the mast every 2-3 month.

it’s better mobil 0W-20 oil
3.Regularly check the connection parts in normal condition.
4.Change seals easily on regular time can make mast in good using conditions after
using 10 thousand times.

air powered telescoping boom mast

Workshop

Our Service

we supply telescopic mast up to 35m,usually used as antenna mast,communication tower,light support,camera mast and so on,custom-made payload to 400kg,customized length,retracted,payload etc. accepted.

catalog of some common grade manual mast as follows-

extended height (m)	No. of section	retracted height (m)	outer tube range (mm)	self weight (kg)
4	3	1.6	60-80	14
5	4	1.65	50-80	17
6	5	1.7	50-90	21
8	6	1.8	40-90	24
10	7	1.95	30-90	26
12	7	2.2	30-90	28
15	8	2.45	30-105	33
18	9	2.7	30-130	47
20	9	2.95	30-130	55
22	9	3.15	30-130	58
25	10	3.4	30-150	72
30	10	3.85	30-150	84