SC80N-QL DTH Hammer No Footvalve

Product Description

Overview

SC80N-QL DTH hammer is a kind of DTH hammer with the tubeless (no footvalve) drill bits. It achieved high penetration during drilling due to the optimized components. It is proven by testing and using in many job sites for varies rock conditions. It is used for varies applications, including mining, exploration, water well, geothermal, construction drilling and civil engineering, outstanding especially for mining.

Features

1、Valveless air distribution ensures smooth working.

2、 Piston design and harden wear part ensure strong wear-resistance

3、 Minimize the energy loss, high penetration, lower air and oil consumption.

4、 Fewer internal parts minimize the maintain and replace the part requirements.

Total parameter list

Model

SC80N-QL

Bit shank

QL80 no footvalve

Top sub thread

API 4 1/2" REG

Length (less bit)

1330mm (52.4 in)

External diameter

185mm (7.3 in)

Weight (less bit)

182kg (402lbs)

Impact rate at 17 bar

22HZ

Hole range

195mm-254mm (7.68 in -10 in)

Working pressure

10-30 bar (145 - 435 PSI)

Speed recommended

20-45 rpm

Pull force recommended

18 KN

Drill bits

Dia

Button configuration
Qty x dia.

Bit design

Weight
(kg)

Part number

Metric

Inch

Guage button

Front button

203mm

8"

Ф18mm*10

Ф18mm*8, Ф16mm*5

Concave face

50

SC80N-QL-203CC

216mm

8 1/2"

Ф18mm*10

Ф18mm*8, Ф16mm*6

Concave face

54

SC80N-QL-216CC

219mm

8 5/8"

Ф18mm*10

Ф18mm*8, Ф16mm*6

Concave face

55

SC80N-QL-219CC

229mm

9"

Ф18mm*12

Ф16mm*12, Ф16mm*7

Concave face

56

SC80N-QL-229CC

235mm

9 1/4"

Ф18mm*12

Ф16mm*12, Ф16mm*7

Concave face

57

SC80N-QL-235CC

245mm

9 5/8"

Ф19mm*12

Ф16mm*12, Ф16mm*8

Concave face

62

SC80N-QL-245CC

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