Main application
Mining
DTH hammers, tricone bits, RC and drill string for continuous operation in underground and open-pit mining.
DTH
SM35 - HD (DHD 3.5)
SM35-HD (DHD 3.5) DTH hammer for 3" drilling.
Technical catalog
SM35-HD technical catalog
Hover over a number on the image or a row in Parts detail to link both views of SM35 - HD (DHD 3.5).
| Parts detail | Weight kg | Part no. |
|---|---|---|
| 1、Top Sub | 4.20 | SM3501 |
| 2、Carbide Button (OPTIONAL) | 0.12 | SM3502 |
| 3、“O”-Ring | 0.01 | SM3503 |
| 4、Check Valve | 0.20 | SM3504 |
| 5、Spring | 0.02 | SM3505 |
| 6、Compression Buffer | 0.02 | SM3506 |
| 7、Air Distributor | 1.40 | SM3507 |
| 8、“O”-Ring | 0.01 | SM3508 |
| 9、Internal Cylinder | 1.60 | SM3509 |
| 10、Piston | 5.40 | SM3510 |
| 11、External Cylinder | 9.50 | SM3511 |
| 12、“O”-Ring | 0.01 | SM3512 |
| 13、Stop Ring | 0.20 | SM3513 |
| 14、Drive Chuck | 1.95 | SM3514 |
| 15、Drill Bit | 5.00 | SM3515 |
Technical data sheet
Length (without bit)
930 mm
Weight (without bit)
24.50 kg
Outside diameter
φ81 mm
Bit Shank
IR 3.5"
Bit range
φ90 — φ110
Top thread
API 2 3/8" Reg Pin
Working pressure
0.5 — 2.5 MPa
Impact rate at 17 bar
28 Hz
Recommended rotation speed
28 rpm
Air consumption
10 bar
4.8 m³/min
18 bar
9.6 m³/min
24 bar
12.6 m³/min
Features
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DTH Hammers 3" to 12"
| MODEL | SM35 - HD | SM40 - HD | SM50 - HD | SM60 - HD/XL | SM60 - QL | SM80 - HD | SM80 - QL | SM60-HDW QL |
|---|---|---|---|---|---|---|---|---|
| TOP THREAD | 2 3/8" REG | 2 3/8" REG | 3 1/2" REG | 3 1/2" REG | 3 1/2" REG | 4 1/2" REG | 4 1/2" REG | BECO 3 |
| TUNGSTEN CARBIDE INSERT | NO | YES | YES | YES | YES | YES | YES | YES |
| OUTSIDE DIAMETER | 81 mm | 99 mm | 125 mm | 142 mm | 146 mm | 180 mm | 184 mm | 150 mm |
| LENGTH W/O BIT | 930 mm | 1030 mm | 1170 mm | 1248 / 1308 mm (XL) | 1057 mm | 1487 mm | 1434 mm | 1212 mm |
| TOTAL WEIGHT | 24,5 kg | 39,2 kg | 71,5 kg | 98 / 102 kg (XL) | 95 kg | 188 kg | 182 kg | 95 kg (sin bit) |
| PISTON WEIGHT | 5,4 kg | 8,8 kg | 17,5 kg | 23,6 kg | 20,44 kg | 41,80 kg | 39,80 kg | 23,6 kg |
| SHANK | DHD 3.5 | DHD 340 | DHD 350 | DHD360 / SM60XL | QL60 | DHD 380 | QL80 | QL60 |
| AIR CONSUMPTION 10 BAR | 4,8 m³/min | 6 m³/min | 8,7 m³/min | 10,5 m³/min | 10,3 m³/min | 11,4 m³/min | 11,2 m³/min | 10,5 m³/min |
| AIR CONSUMPTION 18 BAR | 9,6 m³/min | 10,8 m³/min | 16,8 m³/min | 20,4 m³/min | 19,9 m³/min | 22,2 m³/min | 21,8 m³/min | 20,4 m³/min |
| AIR CONSUMPTION 24 BAR | 12,6 m³/min | 15 m³/min | 23,4 m³/min | 28,5 m³/min | 27,3 m³/min | 29,7 m³/min | 29,4 m³/min | 28,5 m³/min |
Applications
- Mining
- Water wells
- Anchoring
- Micropiles
Compatible DTH bits
Brocas recomendadas para SM35 - HD (DHD 3.5)
Relación catálogo 2026: shank DHD 3.5. Diámetros tolerados por este martillo.
- 90 mm
- 95 mm
- 100 mm
Highlights
- High impact frequency and good performance at standard working pressures.
- Compatible with industry DHD and QL standards.
- South Mining Supply spare parts and technical support.
High-performance percussive drilling equipment, including down-the-hole (DTH) and reverse circulation (RC) systems, designed to maximize energy transfer to the bit. They operate efficiently across a range of pressures and are available in multiple configurations covering drilling diameters from 3" to 38".