QL DTH Hammer

Product Detail

Quantum Leap (QL) DTH Hammer
Introduction:
Our Quantum Leap product line is available for those seeking a good balance between strong performance and cost. This product line was the industry's first hybrid-combination of valve and valve less air cycled down-hole drills. Setting many industry benchmarks, the Quantum Leap line continues to offer good value.
Secoroc Rock Drilling Tools

Secoroc QLX 50/55 down-the-hole hammers

QLX – the latest in high performance DTH hammers

At Atlas Copco Secoroc, we keep looking for new ways of improving our customer’s productivity.

That’s why we have taken the best of the QL design, thrown in a few new ideas and created the Secoroc QLX 50 and QLX 55 down-the-hole hammers.


QLX 50 and QLX 55 are primarily deep hole hammers, but also proven to be high performance hammers for other applications.

These new 5" hammers offers 20% more all round performance than the QL hammers and better water-logged deep hole drilling capacity than it´s predecessor, the TD 50 hammer. They are benchmarks with highest rate of penetration (ROP), and reliability that are a cut above the rest, thanks to solutions such as the new e-kit making servicing easier and quicker to execute.

The QLX 55 has thicker heavy duty (HD) casing for longer service life when drilling in abrasive rock formations.


The QLX 50 and QLX 55 has been stringently field tested in USA and Sweden prior to launch.

They have proven outstanding in water well, geothermal drilling and other applications, thanks to the Air select feature that enables the QLX to match a variety of air packages while utilizing the excess air for hammer power.

Hammers products

Selecting the right hammer


The optimum range of hole size for blast hole drilling with DTH is 90 mm to 254 mm (3 ½"–10"). Smaller blast holes are generally drilled using tophammer, and larger holes generally use rotary machines.


In other applications, like foundation drilling, DTH hammers can be used with single bit in hole sizes up to 914 mm (36"). With multiple hammer units CD (Cluster Drills) drill holes up to 70" or 1778 mm as standard.

Larger cluster drills can be delivered as per customer request.


As a rule of thumb, the smallest hole diameter a DTH hammer can drill is its nominal size. A 4 inch hammer will drill a 4 inch (102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole

diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1 inch, so for a 4 inch hammer the maximum hole size is 5 inch (127–130 mm).


Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for

cuttings to evacuate the hole.


Secoroc hammers are purpose-matched for all rock types and applications. Where high performance is the main criterion, Secoroc COP Gold hammers are recommended in blast hole drilling and Secoroc QLX hammers in deep hole drilling applications. The QLX hammer has proven superior performance and adaptability to different air requirements thanks to the Air Select System.


Where proven technology is required, the Secoroc COP and QL hammers are known for their reliability and longevity. They are practically bullet proof, making them useful for production drilling in quarries, shallow water well drilling, and underground blasthole drilling.


QM is similar to Standard, but with heavy duty chuck and wear sleeve, and a top sub fitted with tungsten carbide buttons for wear protection in harsh and abrasive conditions. These also protect the top sub from excessive wear when rotating out of the hole through broken Rock.


Service and support

Atlas Copco Secoroc service, support and training follows every purchase, to ensure that customers extract maximum productivity from their drilling operations. Having a knowledgeable and available Secoroc drilling partner on site or online makes the difference between going it alone and tapPing

the experience and know-how of a world-class partner.


For example, Secoroc knows that using higher productivity bits reduces the cost of each drilled hole, and the simplest way to cut costs is to drill holes faster. This has been a focus of product development, and is at the core of Secoroc technology, ensuring that every generation of products drills faster and more efficiently.


It takes a support team to apply this knowledge, so that customers can be assured they run a profitable and efficient drilling operation in an increasingly competitive business climate.


The bottom line is that the customer can count on Secoroc service and support, supplied by the largest, most dedicated manufacturer of DTH drilling tools in the world.

Advantages:  

DTH bit is our main product. After many years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.

1. High and low air pressure down-the-hole drill bits

2. Low air pressure hole diameter: 65 ~ 220mm

3. High air pressure hole diameter: 85 ~ 305mm

4. Face type: drop center/concave/convex/double gauge/flat

5. Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc. 

ROSCHEN DTH Hammers Specifications
Hammer Size	Bit Shank	ROSCHEN Code	Connection Thread	Suitable bit	Working pressure	Air consumption
2"	BR2	ROS 11                 ROS 22	RD50 box	?70-?90mm	0.7-1.75Mpa	0.7Mpa	4.5m3/min
						1.0Mpa	4m3/min
						1.4Mpa	5m3/min
3"	DHD3.5	ROS 32	API 2 3/8" Reg	?90-?110mm	1.0-1.5Mpa	1.0Mpa	4.5m3/min
	COP32/COP34
	M30					1.5Mpa	9m3/min
4"	DHD340	ROS 34	API 2 3/8" Reg	?110-?135mm	1.0-2.5Mpa	1.0Mpa	6m3/min
	COP44
	QL40
	SD4					1.8Mpa	10m3/min
	M40					2.4Mpa	15m3/min
5"	DHD350	ROS 52               ROS 54	API 2 3/8"Reg/API 3 1/2" Reg	?135-?155mm	1.0-2.5Mpa	1.0Mpa	9m3/min
	COP54
	QL50
	SD5					1.8Mpa	15m3/min
	M50					2.4Mpa	23m3/min
6"	DHD360	ROS 62           ROS 64	API 3 1/2" Reg	?155-?190mm	1.0-2.5Mpa	1.0Mpa	10m3/min
	COP64
	QL60
	SD6					1.8Mpa	20m3/min
	M60					2.4Mpa	28.5m3/min
8"	DHD380	ROS 82              ROS 84	API 4 1/2" Reg	?195-?254mm	1.0-2.5Mpa	1.0Mpa	15m3/min
	COP84
	QL80					1.8Mpa	26m3/min
	SD8					2.4Mpa	34m3/min
	M80/M85
10"	SD10	ROS 100	API 6 5/8" Reg	?254-?311mm	1.0-2.5Mpa	1.0Mpa	22m3/min
	Numa100					1.8Mpa	40m3/min
	ROS 100					2.4Mpa	55m3/min
12"	DHD1120	ROS 120	API 6 5/8" Reg	?305-?445mm	1.0-2.5Mpa	1.0Mpa	30m3/min
	SD12					1.8Mpa	56m3/min
	Numa120					2.4Mpa	78m3/min
Notes: Any special size of DTH bits will be    available by requests.
Metzke, Remet thread is available!

Please contact your Roschen representative for products specifications information, and DTH hammers ordering assistance.  




FAQ:

1. Methods of Payment:

T/T (Telegraphic Transfer) or Western Union or L/C at sight

2. Handling time for an order

Based on order quantity, normally it takes 10-15 days for production.

Only 2 or 3 days if we have stock on your request size.

3. Shipping way

Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea.

4. Quality Control

We have our own experienced QC.

There will be strict inspection and testing for every order before shipping out.

5. After Services:

1. Our sales team will response for your question within 24 hours (Holidays Excluded)

2. Technical Support will be available in any time

3. Free replacement will provide once the failure confirmed caused by our product quality