Reverse Circulation RC Bits Src40

• After-sales Service: Yes
• Warranty: Yes
• Transport Package: Ply-Wooden
• Specification: 124mm-140mm
• Trademark: sollroc
• Origin: Made in China
• Model NO.: SRC40
• HS Code: 82071300
• Production Capacity: 10000/Month

Product Description

Product introduction
RC drilling refers to Dual Wall or Dual Tube Drilling.RC drilling applies two rods with inner and outer tubes.Air is blew down the annulus of the rod and enter into hammer and bit.Rock formation fragments crushed by bit are collected into the inter tube via air hole on the bit head.And then returned to the ground and enter into sampling system.

Advantages
1.Sample is dry and without contamination
2.High penetration
3.RC drilling achieves better penetration than conventional hammer.
4.High sample recovery rate
5.Sample recovery rate is up to 98%.

Technical parameters
RC bits Model RC5-SRC40 for shank SRC40

Diameter		Buttons*button diameter                      (mm)		Button angle	Flushing holes	Shroud Diameter	Weight (kg)	Part No.
mm	inch	Gauge	Centre
124	4 7/8	8x 14mm	8x 13mm	35	2	122	14.5	5-SRC40-124
127	5	8x 14mm	8x 14mm	35	2	125	14.7	5-SRC40-127
130	5 1/8	8x 16mm	8x 14mm	35	2	128	14.9	5-SRC40-130
133	5 1/4	8x 16mm	6x 14mm+3x 14mm	35	2	131	15.0	5-SRC40-133
138	5 7/16	8x 16mm	6x 16mm+3x 14mm	35	2	136	15.8	5-SRC40-138
140	5 3/8	8x 16mm	6x 16mm+3x 14mm	35	2	138	16.0	5-SRC40-140

Detail photos