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Hydraulic Rock Drill Drillcom model RD22 Authorized distribuitors to all Americas Piedmont Rock Drills USA Sales: Ed Giuffre +1 540 537 4367 Inernational Sales: Francisco Azevedo +1 540 922 2854 All our PRD rock drill attachments will now be offered with Drillcom RD series hydraulic drifters. Piedmont Rock Drills also can custom build any type of drilling machine for your application. The benefits of the RD series rock drills, when comparing to conventional drills: When idling ( Percussion on with the shank rod not in contact with the rock) stresses to tie bolts caused by piston dampening are eliminated with the internal structure of the percussion cartridge. Percussion piston designed for the best possible energy transfer for rock breaking. Low feed force means low rotation resistance. Longer life for your drill steels,striker bars, and drill bits. Robust rotation gear structure. Easy to maintain, Less special tools needed. Reduced price on spare parts. Drilling results from the stone quarry in July 2010: Brown granite in Finland - Vertical holes Drilling tools: 10 ft /3.04 meters 7/8 hex with ballistic button bit. diameter size 32mm/ 1 1/4". Drilling speed 5 ft 6 inches /1.7 meters per minute. Percussion pressure 120 bar /1740 PSI. Rotation pressure 30 bar /435 PSI. Feed pressure 50 bar /725 PSI ( Corresponding the force of 3.2 kN)

Hydraulic Rock Drill Drillcom model RD22piedmontrockdrills.squarespace.com/s/RD22-Brochure_US.pdf · Hydraulic Rock Drill Drillcom model RD22 Specifications: Metric Imperial Drilling

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Page 1: Hydraulic Rock Drill Drillcom model RD22piedmontrockdrills.squarespace.com/s/RD22-Brochure_US.pdf · Hydraulic Rock Drill Drillcom model RD22 Specifications: Metric Imperial Drilling

Hydraulic Rock Drill Drillcom model RD22

Authorized distribuitors to all Americas

Piedmont Rock Drills USA Sales: Ed Giuffre +1 540 537 4367

Inernational Sales: Francisco Azevedo +1 540 922 2854

• All our PRD rock drill attachments will now be offered with Drillcom RD series hydraulic drifters.• Piedmont Rock Drills also can custom build any type of drilling machine for your application.

The benefits of the RD series rock drills, when comparing to conventional drills:

• When idling ( Percussion on with the shank rod not in contact with the rock) stresses to tie bolts caused by piston dampening are eliminated with the internal structure of the percussion cartridge.

• Percussion piston designed for the best possible energy transfer for rock breaking.• Low feed force means low rotation resistance. Longer life for your drill steels,striker bars, and drill bits.• Robust rotation gear structure.• Easy to maintain, Less special tools needed.• Reduced price on spare parts.

Drilling results from the stone quarry in July 2010:• Brown granite in Finland - Vertical holes• Drilling tools: 10 ft /3.04 meters 7/8 hex with ballistic button bit. diameter size 32mm/ 1 1/4".• Drilling speed 5 ft 6 inches /1.7 meters per minute.• Percussion pressure 120 bar /1740 PSI.• Rotation pressure 30 bar /435 PSI.• Feed pressure 50 bar /725 PSI ( Corresponding the force of 3.2 kN)

Page 2: Hydraulic Rock Drill Drillcom model RD22piedmontrockdrills.squarespace.com/s/RD22-Brochure_US.pdf · Hydraulic Rock Drill Drillcom model RD22 Specifications: Metric Imperial Drilling

Hydraulic Rock Drill Drillcom model RD22

Specifications: Metric Imperial

Drilling tool(s) 108mm HEX 7/8” HEX 1”

Hole size (recommended) 28mm - 45mm 1 1/8” – 1 3/4”

Flushing media Air, water or water mist

Recommended hydraulic oil Diesel engine oil, grade API CD or higher, viscosity grade depending on temperature, SAE 10W-30 or 15W-40

Shank lubrication oil Shell Torcula 32 (winter) and 100 (summer).

Shank lubrication grease Shell Rhodina EP2 NLGI (waterproof)

Impact power max. (kW) 5.5 kW

Impact energy 70 Nm at 130 bar (low pressure) or 160 bar (high pressure)

51 ft-lb at 1885 PSI (low pressure) or2320 PSI (high pressure)

Percussion oil flow 45 l/m at 130 bar (low pressure) or 35 l/m at 160 bar (high pressure)

12 GPM at 1885 PSI (low pressure) or9.2 GPM at 2320 PSI (High pressure)

Feed force needed (kN, approx.) 4 -Vertical drilling application, theoretical

Rotation speed max. 300 rpm 300 rpm

Rotation pressure max. See note 1) belowValue for 20ccm rotation motor

120 bar 1740 PSI

Rotation torque 100 Nm 74 ft-lb

Rotation oil flow max. 20 5.6 GPM

Shank lubrication air 300 20 CFM

Flushing air pressure 6 bar 85-90 PSI

Flushing air flow 800 l/m 70-90 PSI

Flushing water pressure 6 bar 40-85 PSI

Flushing water flow 15 l/m 4 GPM

Weight 63 kg 140 lb

1) Rotation motor alternatives: 12,9 ccm, 20 ccm and 32 ccm (call for larger motor sizes)