Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for Dth Hammer Bit, Large Diameter Drilling Bit, Concentric Drilling System, We warmly welcome all standpoint inquiries from home and abroad to cooperate with us, and anticipate your correspondence.
Cheap PriceList for Coal Drill Bit - 6″ DTH Hammer valveless DHD360 COP64 QL60 Shank – Spark Detail:
Specification
| Brand Name |
SPARK |
| Product model |
DHD360 COP64 QL60 |
| Application |
Mining, quarry, water well, geothermal well,piling, foundation, slope reinforcement |
| Thread |
API 3 1/2″Reg Pin |
| Outer diameter |
148mm |
| Shank |
DHD360 COP64 QL60 without foot valve |
| Hole size |
152~203mm (standard)>203mm (oversize) |
| Air pressure |
Max 30bar |
| Air consumpation |
20m³/min(18Bar) |
| Rec. rotary speed |
25~55 rpm |
| Weight |
96kg~100kg |
Item Description
| ITEM DESCRIPTION |
 |
NO |
PART LIST |
| 1 |
TOP SUB (can add carbides) |
| 2 |
TOP SUB RING |
| 3 |
CHECK VALVE |
| 4 |
SPRING |
| 5 |
SHOCK RING |
| 6 |
AIR DISTRIBUTOR |
| 7 |
INNER CYLINDER |
| 8 |
PISTON |
| 9 |
OUTER CYLINDER |
| 10 |
BUSH DRIVE SUB |
| 11 |
O RING |
| 12 |
BIT RETAINING RING |
| 13 |
CHUCK SLEEVE |
For the valveless hammer, we also have other size for your choice: 3.5″, 4″, 5″,6″, 8″, 10″,12″. If you need more information, please contact our sales for details.
We Also Have Other Series Hammers With Foot Valve, The Advantage Are As Follows
1. The hammers adopts high frequency design, the impact frequency is close to the valveless hammer.
2. All the parts are made of high quality special steel, and the surface is hardened, and the surface finish is improved, which can ensure good wear resistance and long lifetime.
3. Simple struture, high realiablity, easy to disassemble and maintain.
4. The impact power is higher than valveless type. It is very suitable for water well drilling. The cuttings will not reverse into the hammer.
Product package: We wrap the hammers in a plastic bag, then put it in plywood case, and then strap the case.

Product detail pictures:
Related Product Guide:
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