The unique design of HST-EYP pulse tools, combining pulse unit and air shut-off mechanism, provides the most excellent accuracy of shut-off torque while supply air pressure fluctuates between 4 bar and 6 bar or more.
While generating a pulse, some amount of high pressure oil is going through the internal oil passage (tunnel) in the wall of the anvil and flows into the oil chamber through the check valve orifice. During a series of pulses, the accumulated volume of oil in the chamber keeps increasing and finally activates the shut-off piston.
When the supplied air pressure goes down, the rotation of the air motor slows down and simultaneously, the number of pulses being generated becomes lower, also. As a result it takes more time to build up enough fluid pressure to activate the shut-off piston which will transmid fluid force to the air shut-off valve by way of the signal pin located in the center of the rotor.
This automatic self-controlled mechanism is called „DIRECT AIR SHUT-OFF“, and it is patented.
Illustration on the top shows how stable shut-off torque can be maintained even if the supplied air pressure fluctuates between 4 bar and 6 bar.
HST-EYPS-70AS
HST-EYPS-80AS
D-Typ
Torque range |
RPM under no load |
Straight screwdriver | Adapter |
4 bar |
6 bar |
4 bar |
6 bar | Weight |
Air consumption under no load |
HST-EYPS-70AS-D |
1/4" hex (M6-M8) |
7 - 16 Nm |
7 - 18 Nm |
4,800 |
5,400 |
1.00 Kg |
0.40 m³/min |
HST-EYPS-80AS-D |
13 - 30 Nm |
15 - 30 Nm |
4,800 |
5,400 |
1.00 Kg |
0.40 m³/min |
|
HST-EYPS-70AS | 3/8" square (M6-M8) | 7 - 16 Nm | 7 - 18 Nm | 4,800 | 5,400 | 1.00 Kg | 0.40 m³/min |
HST-EYPS-80AS | 13 - 30 Nm | 15 - 30 Nm | 4,800 | 5,400 | 1.00 Kg | 0.40 m³/min |
Tools incl. protection cover
Sound pressure level (LpA) 77,68 db(A) | K value vibration 0,88 m/s²
HST-EYP-70AS
HST-EYP-80AS
HST-EYP-90AS
HST-EYP-95AS
HST-EYP-120AS
HST-EYP-150AS
D-Typ
Torque range |
RPM under no load |
Pistol screwdriver | Adapter |
4 bar |
6 bar |
4 bar |
6 bar | Weight |
Air consumption under no load |
HST-EYP-70AS-D |
1/4" hex (M6-M8) |
5 - 18 Nm |
7 - 20 Nm |
8,000 |
8,800 |
1.10 Kg |
0.55 m³/min |
HST-EYP-80AS-D |
15 - 33 Nm |
18 - 35 Nm |
6,700 |
7,200 |
1.10 Kg |
0.60 m³/min |
|
HST-EYP-90AS-D | 25 - 45 Nm | 30 - 50 Nm | 5,000 | 5,500 | 1.10 Kg | 0.60 m³/min | |
HST-EYP-70AS-38 | 3/8" square (M6-M8) | 5 - 18 Nm | 7 - 20 Nm | 8,000 | 8,800 | 1.10 Kg | 0.55 m³/min |
HST-EYP-80AS-38 | 15 - 33 Nm | 18 - 35 Nm | 6,700 | 7,200 | 1.10 Kg | 0.60 m³/min | |
HST-EYP-90AS-38 | 3/8" square (M10-M12) | 30 - 60 Nm | 33 - 65 Nm | 5,000 | 5,500 | 1.40 Kg | 0.60 m³/min |
HST-EYP-150AS |
3/8" square (M16) |
140 - 200 Nm | 140 - 200 Nm | 2,300 | 2,600 | 4.10 Kg | 0.75 m³/min |
HST-EYP-150AS-H | 160 - 250 Nm | 160 - 280 Nm | 2,300 | 2,600 | 4.10 Kg | 0.75 m³/min | |
HST-EYP-70AS-12 |
1/2" square (M6-M8) |
5 - 18 Nm |
7 - 20 Nm |
8,000 |
8,800 |
1.10 Kg |
0.55 m³/min |
HST-EYP-80AS-12 |
15 - 33 Nm |
18 - 35 Nm |
6,700 |
7,200 |
1.10 Kg |
0.65 m³/min |
|
HST-EYP-90AS-12 | 1/2" square (M10-M12) |
30 - 60 Nm |
33 - 65 Nm |
5,000 |
5,500 |
1.40 Kg |
0.60 m³/min |
HST-EYP-95AS |
30 - 80 Nm |
30 - 85 Nm |
4,700 |
5,100 |
1.50 Kg |
0.70 m³/min |
|
HST-EYP-120AS |
1/2" square (M14) |
70 - 120 Nm |
70 - 120 Nm |
3,000 |
3,500 |
2.70 Kg |
0.70 m³/min |
HST-EYP-120AS-H |
100 - 150 Nm |
100 - 150 Nm |
3,000 |
3,500 |
2.70 Kg |
0.70 m³/min |
Tools incl. protection cover (except HST-EYP-120 & HST-EYP-150)
Sound pressure level (LpA) | K value vibration
HST-EYP-70AS 80,07 db(A), 0,88 m/s² | HST-EYP-80AS 79,39 db(A), 0,58 m/s² | HST-EYP-90AS 80,32 db(A), 0,66 m/s² |
HST-EYP-95AS 80,32 db(A), 0,66 m/s² | HST-EYP-120AS 77,42 db(A), 1,14 m/s² | HST-EYP-150AS 81,82 db(A), 1,07 m/s²
HST-EYP-200AS
HST-EYP-300AS
HST-EYP-380AS
Torque range |
RPM under no load |
Power screwdriver |
Adapter |
4 bar |
6 bar |
4 bar |
6 bar | Weight |
Air consumption under no load |
HST-EYP-200AS |
3/8" square (M18-M20) |
200 - 300 Nm |
200 - 300 Nm |
3,500 |
4,000 |
7.90 Kg |
1.40 m³/min |
HST-EYP-200AS-H |
300 - 400 Nm |
300 - 400 Nm |
3,500 |
4,000 |
7.90 Kg |
1.40 m³/min |
|
HST-EYP-300AS |
1" square
(M20-M22) |
400 - 500 Nm | 400 - 500 Nm | 4,200 | 4,800 | 10.3 Kg | 1.60 m³/min |
HST-EYP-380AS | 500 - 600 Nm | 500 - 600 Nm | 3,300 | 4,000 | 10.7 Kg | 1.80 m³/min |
Sound pressure level (LpA) | K value vibration
HST-EYP-200AS 96,15 db(A), 0,79 m/s² | HST-EYP-200AS-A 96,15 db(A), 0,88 m/s² | HST-EYP-300AS 89,47 db(A), 0,79 m/s² | HST-EYP-380AS 89,57 db(A), 0,97 m/s²