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GENERAL DESCRIPTION
The Patriot 125/125HD is a valveless, pneumatically operated tool designed to utilize
Numa 12-1/4" to 20" (311 mm to 508 mm) diameter bits in rock formations under a wide range
of operating conditions. The Patriot 125HD utilizes bits from 13" to 20" (331 mm to 508 mm).
The Patriot 125/125HD hammer design incorporates a non-reversible, hardened case.
The single bore design allows for a maximum bore diameter in conjunction with optimum
life against abrasion. The simple design of the Patriot 125/125HD provides performance and
dependability without sacrificing tool life.
The Patriot 125/125HD is designed for universal applications using air pressure from 150
PSI to 250 PSI (10.2 Bar to 17.0 Bar) with compressors having capacities of 1300 CFM (614 Litres/
Second) or more. When drilling conditions require supplementary hole cleaning, additional
hole cleaning air can be passed through the hammer by utilizing an interchangeable choke.
All standard hammers shipped from Numa have a blank choke installed. Refer to page 15
for correct choke selection and pages 7 and 12 to facilitate the removal and the installation
of the choke.
Weight w/o Bit:
Outside Diameter:
Hammer Length:
Shoulder to Shoulder
Shoulder to Bit Face
Backhead API Thread
12-1/4" (311 mm)
12-3/8" (314 mm)
13"
(330 mm)
14"
(356 mm)
15"
(381 mm)
Numa 12-1/4" to 20" (311 mm to 508 mm) bits are available in concave face
design with large air flushing holes and chip ways to take advantage of the
Patriot 125/125HD performance. Other sizes may be available upon request.
02/09/23
SECTION I
DESCRIPTION
Patriot 125/125HD
P125
P125HD
P125
P125HD
Table 1-1 General Hammer Specifications
433 lbs. (197 kg)
437 lbs. (199 kg)
450 lbs. (204 kg)
509 lbs. (231 kg)
533 lbs. (242 kg)
Table 1-2 General Bit Specifications
NOTE
Patriot
125/125HD
1133 lbs.
(514 kg)
1360 lbs.
(618 kg)
10-3/4"
(273 mm)
11-3/4"
(298 mm)
66-3/4"
(170 cm)
75-3/4"
(192 cm)
6-5/8 API REG
16"
(406 mm) 581 lbs.
17-1/2" (445 mm) 619 lbs.
18"
(457 mm) 646 lbs.
19"
(483 mm) 781 lbs.
20"
(508 mm) 833 lbs.
(264 kg)
(281 kg)
(293 kg)
(354 kg)
(378 kg)
Page 1
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