DTH Hammers

TRC HAMMER

TRC HAMMER

It’s a new version of Reverse Circulation hammer. The cuttings are evacuated to the ground through the inner tube of RC hammer.
TRC hammers lead to productivity growth and cost savings.

TRC HAMMER Specification

model TRC50 TRC80 TRC120 TRC450 TRC550
Connection 4" / 4.5" Metzke, 4.5" Remet Hex Joint Hex Joint Hex Joint Hex Joint
Bit Shank RC50 RC80 RC120 RC450 RC550
General Specifications Metric Imperial Metric Imperial Metric Imperial Metric Imperial Metric Imperial
Recommended bit diameter 133 - 146 5 1/4 - 5 3/4 204 - 260 8 1/5 - 10 5/8 300 - 426 11 4/5 - 16 7/9 503 - 620 19 4/5 - 24 2/5 550 - 670 21 2/3 - 26 3/8
Outside Diameter 121 4.76 194 7.64 286 11.26 483 19.02 525 20.67
Length w/o connection & bit 1008.5 39.7 1167.0 45.9 1625.0 64.0 1848.5 72.8 2056.0 80.9
Weight w/o bit 59.0 130.1 203.0 447.6 627 1382.5 1916.0 4224.1 2700.0 5952.5
Backhead across flats (mm) 50 X 100 AF 50 X 160 AF 40 X 260 AF Backhead pin hole 4-ø40 50 X 490 AF
Air Consumption
6.9 BAR / 100 PSI (m³/min & cfm) 45.3 1600 48.1 1700
10.3 BAR / 150 PSI (m³/min & cfm) 7.9 280 13.0 460 20.4 720 68.0 2400 70.8 2500
13.8 BAR / 200 PSI (m³/min & cfm) 11.3 400 18.1 640 28.3 1000 93.4 3300 96.3 3400
17.2 BAR / 250 PSI (m³/min & cfm) 15.3 540 23.8 840 39.6 1400 116.1 4100 118.9 4200
24.1 BAR / 350 PSI (m³/min & cfm) 22.6 800 34.0 1200
model TRC640
Connection Hex Joint
Bit Shank RC640
General Specifications Metric Imperial
Recommended bit diameter 680 - 830 26 7/9 - 32 2/3
Outside Diameter 640 25.20
Length w/o connection & bit 2059.0 81.1
Weight w/o bit 4750.0 10472.0
Backhead across flats (mm) Backhead pin hole 4-ø50
Air Consumption
6.9 BAR / 100 PSI (m³/min & cfm) 56.6 2000
10.3 BAR / 150 PSI (m³/min & cfm) 85.0 3000
13.8 BAR / 200 PSI (m³/min & cfm) 113.3 4000
17.2 BAR / 250 PSI (m³/min & cfm) 141.6 5000
24.1 BAR / 350 PSI (m³/min & cfm)

* Other size of TRC Hammer is available upon customer’s request.