4" DHD340 COP44 Q40 DTH Hammer for Mining Water Well and StoneworkProduct Information-Name: 4 inch high air pressure DTH hammer for mining water well drilling-Item Number: KD40N (45A)-Brand Name: KAIYU-Material: Carbide steel-Machine type: Drilling Equipment-Processing: Forging-Connect Thread: API 2 3/8" -Packaging: Wooden Case-Delivery: 3-20days-Certification: ISO9001-Place of Origin: Taizhou, Zhejiang,China(Mainland)-Use: Well drilling, blasting-Application: Used for Granite and marble quarry and well.Product DescriptionWe make DTH Hammers in various sizes running from 3 inch to 10 inch. We offer DHD3.5, DHD340A, DHD350R,DHD360,DHD380,COP44,COP54,COP64,COP84 and QL40,QL50,QL60,QL80 hammers. DTH hammer is one of our main products.It is durable for being produced with advanced craft-work and good material.Our 4" DTH hammer has features below: long working life, low air consumption, easy to assemble and dissemble, service and maintain.They are valve less hammers with optimized air cycle frequency. We also have hammers with valve.We have heavy duty hammers well at larger depths demanding less air usage, delivering minimum performance loss.HIGH AIR PRESSURE HAMMERSDescription3.5" hammer4" hammer5" hammer6" hammer8" HammerItem#KD35N(35A)KD40N(45A)KD50N(55A)KD60N(65A)KD80N(85A)Hammer Length w/o bit(mm)8991030118712401359Top Sub ThreadAPI 2 3/8" REG PINAPI 2 3/8" REG PINAPI 2 3/8" REG PINAPI 3 1/2" REG PINAPI 4 1/2" REG PINOutside Diameter (mm)8299126148180Weight (KG)253866110175Bit (mm)90-110115-140138-165165-203195-254Working PressureBar12-2412-2412-2412-2412-24Mpa1.2-2.51.2-2.51.2-2.51.2-2.51.2-2.5Air Consumption(m³/min)8-128-149-1912-2215-28 (CFM)280-425280-495315-670420-775530-990Bit shankDHD3.5DHD340A.COP44DHD350R.COP54DHD360.COP64DHD380.COP84Item Description Part Number Item Description Part Number 1. Top SubKD40N-01 8. PistonKD40N-08 2. O-ringKD40N-02 9. Guide SleeveKD40N-09 3. CapKD40N-03 10. Bit Retainer RingKD40N-10 4. Check ValveKD40N-04 11. O-ringKD40N-11 5. SpringKD40N-05 12. Driver SubKD40N-12 6. Air DistributorKD40N-06 13. Outer SleeveKD40N-13 7. Inner CylinderKD40N-07
