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Changsha Sollroc Engineering Equipments Co., Ltd

Good quality Down The Hole Hammer for sales
I received my hammers and bits, they looks amazing,.they are performing well after we use them, thanks very much.

—— John Lewis

I would recommend this company product 110% as in the past I have had a 100% good result from them.

—— Vesa Vaatanen

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Tubeless Hammer Down The Hole Hammer 4 Inch Hammer Without Footvalve For Shank IR340

China Tubeless Hammer Down The Hole Hammer 4 Inch Hammer Without Footvalve For Shank IR340 supplier

Large Image :  Tubeless Hammer Down The Hole Hammer 4 Inch Hammer Without Footvalve For Shank IR340

Product Details:

Place of Origin: China
Brand Name: SOLLROC
Certification: SGS
Model Number: IR DHD340 shank

Payment & Shipping Terms:

Minimum Order Quantity: 1 pc
Packaging Details: Carton + plywood case + pallet + mark
Delivery Time: 3-4 weeks
Payment Terms: Western Union, L/C, T/T, MoneyGram, D/P
Supply Ability: 2500 set per month
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Detailed Product Description
Brand: SOLLROC Material: Quality Steel
Air Pressure: 10-30 Bar Bits Dia.: 110mm- 135mm
Air Consuption: 212-530CFM Applications: Mining
Advantage: Fast Speed And Efficiency Footvalve: Without Footvalve

Tubeless Hammer Down The Hole Hammer 4 Inch Hammer Without Footvalve For Shank IR340




1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption.

2. Smooth performance and long service life of SOLLROC DTH hammer due to high quality alloy steel materials and advanced producing technology.

3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.

4. Interchangeable with DTH bit and drill pipe.


Products specifications of Tubeless DTH hammer DHD340:


Shank Fit IR DHD340 shank
Length (less bit) 1011mm
Outer diameter 99mm
Top sub thread API 2 3/8" REG pin 
Weight (less bit) 43kg (95lbs)
Hole range 110mm-135mm
Working pressure 10-30bar
Impact rate at 1.7 Mpa 30Hz
Recommended rotation speed 22-35r/min
Air consumption at 7-14 bar 212-530CFM


Our HD-A serises (without footvalve) DTH hammer specifications:

DTH hammer type HD35A HD45A HD55A
Length(less bit) mm 888 1011 1110
Weight(less bit) kg 25kg (55lbs) 39kg(86lbs) 66kg(145lbs)
External diameter mm Φ82mm Φ99 Φ125
Bit shank DHD3.5 DHD340A DHD350R
Hole range(mm) Φ90-110mm Φ110-130mm Φ135-165mm
Connection thread API 2 3/8" Reg. API 2 3/8"Reg API 2 3/8"Reg
Working pressure 1.0-1.5Mpa 1.0-2.5Mpa 1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa 25Hz 30Hz 28Hz
Recommended Rotation speed 25-40r/min 22-35r/min 20-35r/min
Air consumption 1.0Mpa 3.8m3/min 6m3/min 7m3/min
1.8Mpa 7.5m3/min 10m3/min 13-14m3/min
2.4Mpa / 15m3/min 18-19m3/min


DTH hammer type HD65A HD85A HD120A
Length(less bit) mm 1238 1359 1880
Weight(less bit) kg 105kg(231lbs) 175kg(374lbs) 474kg(1043lbs)
External diameter mm Φ146-148 Φ185 Φ275
Bit shank DHD360 DHD380 DHD1120
Hole range(mm) Φ155-1-190mm 195mm-254mm 305mm-445mm
Connection thread API 2 3/8"Reg API 4 1/2"Reg API 6 5/8"Reg
Working pressure 1.0-3.0Mpa 1.0-3.0Mpa 1.0-3.0Mpa
Impact rate at 1.5-1.7Mpa 25Hz 22Hz 20Hz
Recommended Rotation speed 20-30r/min 15-25r/min 15-25r/min
Air consumption 1.0Mpa 9m3/min 12m3/min 28m3/min
1.8Mpa 18m3/min 22m3/min 50m3/min
2.4Mpa 26m3/min 28m3/min 71m3/min



All DTH Hammer specifications:

Hammers Bit Shank Connection Thread Suitable bit Working pressure Air consumption
1-3" Middle-low pressure DTH hammers   RD40 box   0.7-1.75Mpa 0.7Mpa 4.5m3/min
BR1 RD50 box 64-76mm 0.7-1.75Mpa
BR2 API 2 3/8" Reg 70-90mm 0.7-1.75Mpa 1.0Mpa 4m3/min
BR3   90-110mm   1.4Mpa 5m3/min
3" hammers DHD3.5 API 2 3/8"Reg 90-110mm 1.0-1.5Mpa 1.0Mpa 4.5m3/min
M30 1.5Mpa 9m3/min
4" hammers DHD340 API 2 3/8"Reg 105-130mm 1.0-2.5Mpa 1.0Mpa 6m3/min
SD4 1.8Mpa 10m3/min
M40 2.4Mpa 15m3/min
5" hammers DHD350 API 2 3/8"Reg/API 3 1/2"Reg 130-156mm 1.0-2.5Mpa 1.0Mpa 9m3/min
SD5 1.8Mpa 15m3/min
M50 2.4Mpa 23m3/min
6" hammers DHD360 API 3 1/2"Reg 152-203mm 1.0-2.5Mpa 1.0Mpa 10m3/min
SD6 1.8Mpa 20m3/min
M60 2.4Mpa 28.5m3/min
8" hammers DHD380 API 4 1/2"Reg 200-279mm 1.0-2.5Mpa 1.0Mpa 15m3/min
QL80 1.8Mpa 26m3/min
SD8 2.4Mpa 34m3/min
10" hammers SD10 API 6 5/8"Reg 254-330mm 1.0-2.5Mpa 1.0Mpa 22m3/min
NUMA100 1.8Mpa 40m3/min
  2.4Mpa 55m3/min
12" hammers DHD1120 API 6 5/8"Reg 305-381mm 1.0-2.5Mpa 1.0Mpa 30m3/min
NUMA120 1.8Mpa 56m3/min
NUMA125 2.4Mpa 78m3/min



SOLLROC Provide high efficiency and durable hammer all over the world.



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Tubeless Hammer Down The Hole Hammer 4 Inch Hammer Without Footvalve For Shank IR340

Contact Details
Changsha Sollroc Engineering Equipments Co., Ltd

Contact Person: Jessica

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