Proudly Serving The Underground Industry For Over 35 Years

*Call for Special Pricing*

The Grundomat® Advantage

Grundomat pneumatic piercing tools have been providing accurate horizontal bores beneath roads, railways, and landscaping across North America and around the world for nearly 40 years. Water, gas, sewer and electrical industries have all benefited from this work horse of trenchless technology. Minimal operating space is required and the tool serves as a complement, and in many situations an economical alternative to larger, more expensive directional drilling equipment.

 

What it Does 

Grundomat can perform accurate horizontal bores from 50 to 150 feet in length. The Grundomat can be used in all displaceable soils: sand, loam and even gravel and is easily configured to pull in a wide variety of new pipe materials.

How it Works 


Compressed air repeatedly propels the piston against the rear of the chisel head assembly. This first compresses the pre-tensioned steel spring which forces the chisel head assembly forward independently of the main casing to provide a pilot bore. Then, the same continuous force thrusts the main casing ahead. With decades of proven performance, the Grundomat’s patented stepped-cone head consistently provides accurate results.

Grundomat®  Tool Specifications

MODEL

Tool

Diameter

(in.)

Basic
Package
Part #

Deluxe
Package
Part #

Length

(in.)

Weight

(lbs.)

Air Cons.

(cfm)

Strokes/

Minute

45 P

 1 3/4

70769-17

70604-17

39

20

12

580

55 P

 2

70769-20

70601-20

43

32

18

480

65 PK

2 1/2 

70769-24

70604-24

41

40

23

640

65 P

2 1/2 

70769-26

70604-26

52

55

25

460

75 PK

3

70769-29

70604-29

49

62

28

460

75 P

3

70769-30

70604-30

57

75

32

400

85 PK

3 1/3 

70769-33

70604-33

53

88

25

480

85 P

3 1/3 

70769-34

70604-34

61

101

32

390

95 P

3 3/4 

70769-37

70604-37

68

143

53

320

95 PK

3 3/4 

70769-39

70604-39

60

123

46

360

100 P

4

70769-40

70604-40

68

148

53

320

100 PK

70769-41

40604-41

53

124

43

400

110 P

4 1/4 

70769-43

70604-43

66

212

64

325

130 P

70769-50P

70604-50P

69

258

92

340

145 P

5 3/4 

70769-57P

70604-57P

78

370

120

310

160 P

6 1/4 

70769-60P

70604-60P

79

437

159

320

180 P

70769-70P

70604-70P

87

573

159

280

*Call for Special Pricing*

Grundo-Air® 70 is a portable gas-driven air compressor that goes just about anywhere. No need to lug bulky air compressors to job sites to operate Grundomat pneumatic tools. Grundo-Air 70 continually produces 70 cfm at 100 psi (85 cmf @ 90 psi) with plenty of reserve. It can run up to a Model 95 ZS Grundomat® piercing tool, or power two smaller units simultaneously.
 
 

Standard Features

•POWER-BORE Cylinders

•Hydraulic valve lifters

•Oil Cooler

����������In-line fuel filter

•Electronic SMART-SPARK ignition

•12V solenoid-shift starter

•Oil fill in valve cover

•15A charging system

•Oil Sentry w/light or shutdown

•Dual element air cleaner

•Panel-mounted controls w/ignition key switch

•25 HP @ 3600 rpm

•Fixed jet SMART CHOKE carburetor w / accelerator pump & solenoid fuel shutdown

•8 Gallon fuel capacity

 •Overhead valve design

Financing Available

For Used Equipment Click HERE

SE HABLA ESPANOL


Ditch Witch Of Maryland, 12975 Livestock Road, Sykesville, MD 21784
Contact Us

Copyright 2009 All rights Reserved