
FF-MM-300-REV - 00
Page 3
Operation and Maintenance Guide Pneumatic Needle Scalers
Introduction
Teryair needle guns are rugged tools. They are designed to be easy to use and maintain. They are
ideal for removing layers of paint, corrosion and chemical coatings etc. from metal and non
metal surfaces. These tools work well on irregular surfaces and in crevices and corners. The
needles are heat treated and are quickly replaceable.
Technical Data
Models
IMPA
Number
equiva-
lent
Maximum
operating
pressure
Air
Consumption
(No Load)
Blows
per
min
Sound
Power
Level
(Load)
Vibra-
tion
Level
Mass
(Weight)
Thread
Size
of Air
Inlet
Needles
CFM
m3/
min
(BPM)
LwA b(A)
m/s2
Kg
SN24ST
59 04 81
6kg/cm2
(90 psi)
5.5
0.16
3000
113.3
9.3
2.6
1/4"
3mm x
19 Nos.
SN24PG
59 04 82
5.5
0.16
3000
113.3
12.6
2.6
1/4"
3mm x
19 Nos.
SN29PG
59 04 83
8
0.23
2200
114.5
18.9
3.7
1/4"
3mm x
28 Nos.
SN39STVL
59 05 18
4
0.11
2400
90.7
2.56
2.4
1/4"
3mm x
19 Nos.
SN39PGVL
59 05 00
4
0.11
2400
90.7
2.75
2.7
1/4"
3mm x
19 Nos.
SN45PGVL
59 05 10
5.5
0.16
3000
109.5
2.3
3.5
1/4"
3mm x
28 nos.
Warning
This manual must be read and the operating
instructions carefully followed.
Warning
Safety and protective clothing, eyewear, head-
gear, ear protection, gloves and footwear to be
worn during operation of this Pneumatic Needle
Scaler. Please see Table A at end of this section.
Warning
Operators under 18 not allowed to operate this
Pneumatic Needle Scaler. Operators must be
made familiar with the instructions in this
manual before attempting to operate the
Pneumatic Needle Scaler. Ensure that job site is
clear of by standers
Caution
Use only genuine Teryair or Teryair approved
accessories.
Intended Use
Needle scalers are used for surface prepara-
tion work involving the cleaning or removal
of paint, rust, dirt, or weld slag from metal &
non - metal surfaces. These tools also work well
on irregular surfaces such as crevices & cor-
ners. The needles are heat - treated & quickly
replaceable. Needle scalers are used in marine,
offshore & petrochemical plants.
Safety Instructions
Following symbols are used through out this
manual.