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| Price | Price negotiations |
| MOQ | 1PCS |
| Delivery Time | 20 work days |
| Brand | HZJX |
| Place of Origin | China |
| Model Number | CIR55 CIR60 CIR70 CIR70 CIR76 CIR80 CIR90 CIR100 CIR110 |
| Packaging Details | wooden box package |
| Payment Terms | T/T |
| Supply Ability | 1+PCS+20 work days |
| Condition | New | Place of Origin | China |
| Use | Ore Mining | Size | 7" |
| Packaging Details | wooden box package | Material | High Manganese Steel |
| Model Number | CIR55 CIR60 CIR70 CIR70 CIR76 CIR80 CIR90 CIR100 CIR110 | Supply Ability | 1+PCS+20 work days |
| Brand Name | HZJX | Payment Terms | T/T |
| Advantage | high performance and factory price | Price | Price negotiations |
| Delivery Time | 20 work days | Minimum Order Quantity | 1PCS |
| Application | Water well drilling and rock drilling | Button shape | Spherical/Ballistic/parabolic/sharp/falt bottons |
CIR 90 DTH hammer Low pressure DTH hammer is of good quality
Product features of DTH Hammers and bits
What is a low pressure DTH hammer?
Low-pressure DTH hammers are widely used in various hard, high-hardness and other ductile rocks with poor toughness in geotechnical engineering. It has the following characteristics:
1. The low-pressure DTH hammer is a valve-type central exhaust hammer, which has a good effect of discharging rock powder, reducing the re-crushed rock slag, reducing the wear of the drill bit and improving the drilling efficiency.
2. The internal structure of the hammer head is designed with the latest rock design theory, so that the size of the hammer head can obtain the ideal energy transmission, the power of a single hammer head, the drilling speed is faster, and the gas consumption is lower.
3. Selecting the best quality raw materials and the most advanced processing technology, the performance is more stable and the life is longer.
4. It is easy to disassemble and assemble, with low failure and easy maintenance.
Technical specification of DTH Hammers and bits
| TYPE | LENGTH(MM) | TOP SUB THREAD | OUT DIA(MM) | WEIGHT(KG) | BIT DIA(MM) | WORKING PRESSURE(BAR) | AIR CONSUMPTION(M3/MIN) |
| CIR50 | 628 | F32*8 PIN | 44 | 5 | 50 | 4~10 | 4~8 |
| CIR65 | 745 | F42*10 PIN | 61 | 13 | 65 | 4~10 | 6~10 |
| CIR76 | 811 | F48*10 PIN | 66 | 13.5 | 76 | 4~10 | 6~10 |
| CIR90 | 855 | F48*10 PIN | 80 | 22 | 90~120 | 4~12 | 8~12 |
| CIR90A | 840 | F48*10 PIN | 80 | 22 | 90~120 | 4~12 | 8~12 |
| CIR110A | 871 | API 2 3/8 REG BOX | 98 | 33 | 110~150 | 6~12 | 8~12 |
| CIR130A | 890 | API 2 3/8 REG BOX | 112 | 48.5 | 130~175 | 6~12 | 8~12 |
| CIR150A | 904 | F70*10 PIN | 136 | 70 | 150~200 | 6~12 | 10~16 |
| CIR170A | 1030 | F100*28 PIN | 156 | 96 | 170~250 | 8~14 | 12~18 |
| CIR200A | 1058 | F100*28 PIN | 182 | 130 | 200~250 | 8~14 | 16~20 |
