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Needle count sets the working width and how aggressively the scaler bites. A 12 needle head concentrates the blow into a narrow area and works into a corner, a 28 needle head covers more surface per pass and clears an open face faster. The needles here are 1/8 inch across the sets, so a head can be repopulated without changing the tool.
Stroke is the second figure and it decides how hard each needle lands. A 32mm stroke is stated on the Sealey scalers, and stroke is given on 24 of the 26 lines with weight and length on all of them. Together with needle count, stroke is what separates a scaler that removes scale from one that only polishes it. Needle sets are held separately, so a worn head is repopulated rather than the whole tool replaced.
Vibration is the third figure and it is a working condition rather than a performance one. The low vibration variants across the Chicago Pneumatic B-series exist because a needle scaler is a tool used continuously, and the difference shows over a shift rather than over a minute. The listings name which bodies carry the low vibration mechanism. Weight and length are stated on all 26 lines, which is the other half of how a scaler feels after an hour.
Body form and reach close the choice out. Pistol and composite pistol bodies suit general work, and the long reach scalers at 5/8 inch 15.9mm put the needles into a recess the tool body cannot enter. A single-head piston scaler and a flux chipper cover weld preparation. A photo of the surface over WhatsApp on 07754288583 settles needle count quickly.
| Air consumption at load | 2.2 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 1.4 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.28 in |
| Min hose diam (5 m hose length) | 8 mm |
| Air consumption at load | 2.6 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 2.6 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 0.1 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 3.8 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Blow per minute | 4600 |
|---|---|
| Chisel shank | Square |
| Chisel shank diameter (in) | 1/2 |
| Chisel shank diameter (mm) | 12.7 |
| Energy | 5.5 J |
| Air consumption at load | 2 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 2.4 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 2.1 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Sound Power | 97 dB(A) |
| Air consumption at load | 2.1 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Sound Power | 95 dB(A) |
| Air consumption at load | 2.1 l/s |
|---|---|
| Air inlet thread size | 1/4 in |
| Min hose diameter (16 ft hose length) | 0.38 in |
| Min hose diameter (5 m hose length) | 10 mm |
| Sound Power | 94 dB(A) |
| Air consumption at load | 4.8 l/s |
|---|---|
| Air inlet thread size (in) | 3/8 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 2.1 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Sound Power | 95 dB(A) |
| Air consumption at load | 2.1 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 0.1 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 3.3 l/s |
|---|---|
| Air inlet thread size (in) | 3/8 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 13 mm |
| Air consumption at load | 4.7 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 6.6 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
| Air consumption at load | 2 l/s |
|---|---|
| Air inlet thread size (in) | 1/4 |
| Max dynamic air working pressure | 6.3 bar |
| Min hose diam (16 ft hose length) | 0.38 in |
| Min hose diam (5 m hose length) | 10 mm |
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