Martello Fondo Foro GT80 – shank M80


GT80_M HAMMER SPECIFICATIONSAIR CONSUMPTION / OPERATING PRESSURE
Hammer Outside Diameter185 mm PSIBARCFMM³/min
Hammer Length1260 mm15010.342712.1
Backhead Wrench Flat140 mm20013.860417.1
Drill Bit Shank TypeM8025017.276021.5
Backhead Thread Pin4 1/2" API REG30020.795026.9
Drill Bit Range203 - 254 mm35024.1107730.5
Hammer Weight180 Kg40027.5125735.6
Make Up Torque8200 - 11000 Nm45031141640.1

BIT SHANK – SANDVIK M80

Download Catalogue
ITEMDESCRIPTIONPART N°
1BAKHEADOCGT80M-01
2O-RINGOCGT80M-02
3CHOKE BLANK / 3 / 5 mmOCGT80M-03
4CHECK VALVEOCGT80M-04
5VALVE SPRINGOCGT80M-05
6O-RINGOCGT80M-06
7CONTROL TUBEOCGT80M-07
8O-RINGOCGT80M-08
9PINOCGT80M-09
10INNER CYLINDEROCGT80M-10
11PISTONOCGT80M-11
12CYLINDEROCGT80M-12
13RETAINING RINGOCGT80M-13
14O-RINGOCGT80M-14
15GUIDE BUSHOCGT80M-15
16BIT RETAINING RINGOCGT80M-16
17O-RINGOCGT80M-17
18CHUCKOCGT80M-18

Drilling Applications

Geothermal Drilling
Waterwell Drilling
Blasting Holes / Quarry Drilling
Exploration and Construction Drilling

Advantages and Innovations

Dth Bit and Chuck

Bit shank with 12 Spline and Hard Faced Chuck to optimize the Wear Resistance. The GT Series are designed to eliminates the blow tube/foot valve from the drill bit “Tubeless Technology”.

Cylinder

Hardened and Heavy Duty Wear Sleeve for optimum resistance in abrasive conditions and increase the Hammer life.

Piston

The robust no ported Piston design increases Impact Energy on Drill Bit and improves Drilling Performance.

Choke System

The GT Series DTH Hammers are equipped with Choke System that allows the driller to adjust the volume of air through the hammer to optimize cutting evacuation and drill under a column of water.

Air Flow Chamber

The Innovative Air Flow Chamber optimize the air expansion and compression, by minimizing turbulence and reaching great Piston blow frequency, more penetration rate than 25/30 % with lower Air consumption that means lower fuel costs per drilling meters.

OCMA s.r.l.

Via dei Calzaturieri – Z.I. Lotto D/8
70056 Molfetta (BA) – ITALY
Tel: +39 (0)80 395 50 30 – Fax: +39 (0)80 395 14 98
E-mail: info@ocmasrl.com – Web: www.ocmasrl.com

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