Purros Precision Hydro Speed Regulator is a kind of hydraulic type control device of feed speed that can adjust freely feed speed of air cylinder from low speed to high speed within the range of expectation. Ways of control includes spring return type; you can make a choice according to your requirements.

When there is no load on the piston rod, it is returned automatically to its initial position by an internal spring.
SPECIFICATIONS
Model | Max stroke mm | Load range N | Adjusting range of speed of all kinds of driving forces. Mm/sec | Impact energy permitted J | Weight(Basic body) Kg |
RB-2415 | 15 | 120-1,500 | F=120N 0.1-50 F=200N 0.2-20 F=500N 0.2-25 F=1,000N 0.3-40 F=1,500N 0.4-50 | 2.3 | 0.38 |
RB-2430 | 30 | 0.44 |
RB-2460 | 60 | 0.56 |
RB-2480 | 80 | 0.67 |
RB-24100 | 100 | 0.75 |
RB-24120 | 120 | 0.89 |
RB-3140 | 40 | 500-3,000 | F=200N 0.1-10 F=1,500N 0.2-25F=2,300N 0.3-35 F=3,000N 0.3-35F=1,500N 0.4-50 | 3.5 | 0.95 |
RB-3160 | 60 | 1.13 |
RB-31100 | 100 | 1.35 |
Purros Machinery also have other models (Maximum Stroke:12-100mm, Load Range:120-3000n, Withstand Impact Energy:2.3-3.5j)


Size mark Model | A | B | C | D | E | F | G | H | I | J | K | L | M | N | U |
RB-2415 | 85 | 28 | 24 | 9 | 20 | 32 | 15 | 155 | 38 | 52 | 7 | 17 | 28 | 5 | 2 |
RB-2430 | 112 | 30 | 202 |
RB-2460 | 156 | 60 | 277 |
RB-2480 | 199 | 80 | 342 |
RB-24100 | 232 | 100 | 395 |
RB-24120 | 275 | 120 | 464 |
RB-3140 | 153 | 36 | 31 | 12 | 26 | 42 | 40 | 270 | 44 | 60 | 10 | 21 | 35 | 6 | 2 |
RB-3160 | 189 | 60 | 325 |
RB-31100 | 269 | 100 | 405 |