China QL80 High Air Pressure DTH Hammer Manufacturers, Quotes

1 / 1

China QL80 High Air Pressure DTH Hammer Manufacturers, Quotes

QL80 High Air Pressure DTH Hammer

BR1/BR2/BR3

DHD3.5/DHD340/DHD350/DHD360/DHD380

QL40/QL50/QL60/QL80

MISSION40/MISSION50/MISSION60/MISSION80

Send Inquiry

Product Description

QL80 Quarry Mining High Air Pressure DTH Hammer

The QL SERIES DTH Hammers including QL40, QL50, QL60, and QL80 are designed for demanding drilling environments, providing exceptional performance and durability.

Design Highlights

✔

DHD/QL/MISSION series is a valveless type hammer designed for high performance at low operating air pressure.

✔

Suitable bits have a strong robust design without foot valve to withstand heavy duty application.

✔

Maximizes energy output and reduces service requirements significantly.

✔

Wear sleeve is designed as non-reversible for specific structural integrity.

✔

All critical internal components are heat treated under strict control to maximize tool longevity.

Applications

These hammers are widely utilized across various industrial sectors for drilling and blasting work:

Mine & Quarry Road Construction Water Well Drilling Slope Protection Anchoring

DTH Hammers Series Availability

High pressure series
Medium pressure series
Low pressure series
High efficiency high pressure series
Reverse circulation series

Type	Model	Length (mm)	Weight (kg)	External Dia.(mm)	Hole Range (mm)
3.5 inch	DHD3.5	930	25	Φ82	Φ90-110
4 inch	DHD340	1030	39	Φ99	Φ110-135
	SD4	1084	40.5	Φ99
	QL4	1097	41	Φ99
	Mission40	1005	40	Φ99
5 inch	DHD350	1214	76.5	Φ125	Φ135-155
	SD5	1175	72.5	Φ125
	QL5	1147	73	Φ125
	Mission50	1110	68.5	Φ125
6 inch	DHD360	1248	100	Φ142	Φ155-190
	SD6	1261	100	Φ142
	QL6	1212	95	Φ146
	Mission60	1161	90	Φ146
8 inch	D85	1492	188	Φ180	Φ195-254
	SD8	1463	192	Φ180
	QL8	1465	182	Φ180
	Mission80	1338	176	Φ180
10 inch	SD10	1502	290	Φ226	Φ254-311
10 inch	NUMA100	1510	288	Φ226	Φ254-311

QL80 DTH Hammers Specifications

Hammer Length (without bit): 1333 mm

Top Sub Thread: API 4 1/2" REG PIN

Outside Diameter: 185 mm

Weight: 190 KG

Bit Diameter Range: 195-254 mm

Working Pressure: 12-24 Bar

Air Consumption: 15-28 M3/min

Bit Shank: QL80

Frequently Asked Questions (FAQ)

What makes the QL series DTH hammers "valveless"?

The valveless design means the hammer is engineered to operate efficiently at lower air pressures without the need for traditional internal valve components, which simplifies maintenance and increases performance.

What are the primary applications for QL80 hammers?

They are ideal for large-scale operations including mining, quarrying, water well drilling, road construction blasting, and anchoring projects requiring holes between 195mm and 254mm.

What range of air pressure is required for the QL80?

The QL80 DTH hammer operates effectively within a working pressure range of 12 to 24 Bar, with an air consumption rate of 15 to 28 M3/min.

Is the wear sleeve on these hammers reversible?

No, the wear sleeve in this specific series design is not reversible. This ensures specific structural alignment and durability for heavy-duty applications.

How is the longevity of the internal components ensured?

All critical internal components undergo a strict heat treatment process under controlled conditions to maximize tool life and resistance to wear during high-impact drilling.

Which bit shank is compatible with the QL80 hammer?

The hammer is specifically designed to be compatible with the QL80 bit shank, ensuring a perfect fit and efficient energy transfer.