Drill Derrick

Structure Features

Drill Derricks with angle steel connection and tetragonal structure are also known as tetragonal towers. The features of this series derricks are low weight, short pitch, tall gate, great loading capacity, easy assembling and disassembling as well as lifting drilling tools.

Usage

The drill derricks are suitable for coalfield geology, hydrogeology, geothermal development and grouting operation, and also can match with drilling rigs which used in mining and exploration.

Main Specifications

Nominal loading capacity ( t )	16	36	36	50	75	110	130
Height of derrick (m)	17	18	22	24.5	27	30	37
Height of front gate (m)	6.144	7.5	8.5	8.7	8.2	9	12
Height of rear and side gate (m)	6.144	2.5	4	8.7	6.2	9	4
Area of drill floor (㎡)	55	5.55.5	66	6.56.5	7.0257.025	7.57.5	12.7612.76
Area of crown block (㎡)	1.6091.609	1.4041.404		1.41.4	1.5171.517	22	2.022.02
Weight of derrick (kg)	4600	7340	8830	13500	16650	34700	43500
Matching crown block	Three sheaves			Four sheaves	Five sheaves	Six sheaves
Wind loading (kg/㎡)	≤35					≤130

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