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Secoroc QLX 60/65 Down the Hole Hammer

QLX - The Latest in High Performance Water Well and Mining DTH Hammers

QLX hammerAt Atlas Copco Secoroc we keep looking for new ways of improving our customers' productivity. That’s why we have taken the best from the TD hammer, added the best of the QL design, thrown in a few new ideas, and created the Secoroc QLX 60 and QLX 65 down the hole hammers.

These new 6” hammers offer 20% more all-around performance than QL hammers and better water-logged deep hole drilling capacity than its predecessor, the TD hammer. They are benchmarks with the 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 60 and QLX 65 have been stringently field tested, drilling almost 750,000 feet prior to the launch. They have proven outstanding in mining and water well drilling 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.

The Secoroc QLX 60 and QLX 65 are the first of a completely new range of reliable high performers with the latest technology.

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QLX 60/65 cutaway

QLX 60/65 DTH Hammer Specifications
  1. Field-proven check system.
  2. Robust detent system.
  3. Proven Quantum Leap air cycle provides "power" for 80% of piston down stroke.
  4. Air Select system allows selectable timing to maximize hammer performance to match air package.
  5. Reversible casing to maximize wear.
  6. Industry leading QL style shank.

General Specifications
QLX 60
QLX 65
Connection
3 1/2" API Reg Pin
Outside diameter
5.60"
5.88"
Length w/o bit shoulder to shoulder
42.9"
42.9"
Length with bit extended
48.1"
48.1"
Length with bit retracted
46.6"
46.6"
Weight w/o bit
205 lbs.
235 lbs.
Backhead across flats
2 1/4" x 4 AF
2 1/4" x 4 AF
Minimum bit size
6.125"
6.50"
Maximum bit size
8.50"
8.50"
Bore
4.750"
4.750"
Piston weight
47 lbs.
47 lbs.
Stroke
3.75"
3.75"
Maximum pressure differential
500 psi
500 psi
Make-up torque
6000 ft-lb.
6000 ft-lb.

Air Consumption and Impact Frequency (with Air Select on setting 2)
 
QLX 60
QLX 65
 
scfm/min
bpm*
scfm/min
bpm*
100 psi
229
1384
229
1384
150 psi
360
1500
360
1500
200 psi
502
1616
502
1616
250 psi
655
1732
655
1732
300 psi
818
1847
818
1847
350 psi
993
1963
993
1963
*blows per minute

Operational Specifications
Feed Force
2000 - 3000 lbs.
Rotation Speed
30 - 60 rpm


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Secoroc QLX 60/65 Down the Hole Hammer

QLX 60/65 Down the Hole Hammer part breakdown

Ref.
Part
Ref.
Part
1
Foot valve
14
Compression cone
2
Chuck for QLX 60 / for QLX 65
15
Distributor
3
Chuck O-ring*
16
Air Select guide plug
4
Bit retaining ring assembly
17
Detent kit
5
O-ring* (bit retainer)
17a
Plunger*
6
Bit bearing
17b
Plunger spring*
7
Bearing retaining ring
17c
Plunger retainer plug*
8
Casing for QLX 60 / for QLX 65
18
Check valve spring
9
Piston
19
Check valve (O-ring included)
10
Tail seal
20
Check valve O-ring*
11
Cylinder
21
Check valve choke plug - solid**
12
Valve assembly
21
Check valve choke plug - 1/4"**
12a
Seal*
21
Check valve choke plug - 1/8"**
12b
O-ring*
22
O-ring* (backhead)
13
O-ring*
23
Backhead for QLX 60 / for QLX 65
  *Not sold separately
**Item 21 - Choke plug 1/4" and choke plug 1/8" may be used to bypass more air to reduce pressure and/or
     increase bailing velocity.


Wear Limits
 
Hammers and Kits
Chuck
Min. length
2.15"
  • QLX 60 complete, 3 1/2" API Reg Pin
  • QLX 65 complete, 3 1/2" API Reg Pin
  • Sustainablility kit (includes items 3, 2x5, 10, 12, 2x13, 20, 22)
  • O-ring kit (includes items 4x3, 4x5, 4x13, 2x22, 20)
  • E-kit, QLX 60 (includes items 2, 3, 2x5, 8, 10, 12, 2x13, 18, 20, 22, 23)
  • E-kit, QLX 65 (includes items 2, 3, 2x5, 8, 10, 12, 2x13, 18, 20, 22, 23)
Casing reverse QLX 60
Min. OD
5.44"
Casing reverse QLX 65
Min. OD
5.63"
Casing discard
Min. OD
5.31"
Bit bushing
Max. ID
3.623"
Piston/Casing clearance
Max.
0.009"
Piston/Cylinder
Max.
0.009"
Foot valve protrusion
Max.
2.31"