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Emergency stop
Emergency stop
I dessa sandwichblock passar bland annat Suns logikelement och finns storlekarna NG6 (ISO/CETOP 03), NG10 (ISO/CETOP 05), NG 16 (ISO/CETOP 07) och NG25 (ISO/CETOP 08).
Hur fungerar dessa hydrauliska nödstopp
Dessa block är designade för nödstopp. För att cylindern ska kunna röra sig måste båda logikelementen vara öppna. Dom är stängda i opåverkat läge och eftersom dom är balanserade har det aktuella trycket i A och B ingen påverkan på dess läge. Logikelementen lyssnar enbart på pilottrycket från elventilen för att öppnas. Om strömmen bryts eller nödstoppet aktiveras dränerar elventilen pilotflödet till logikelementen, logikelementen stängs och cylindern stannar genast.
Övervakade hydrauliska nödstoppp
Man kan även få logikelement som är övervakade. Med dessa får man återkoppling i form av en elektrisk signal som indikerar om ventilen befinner sig i öppet eller stängt läge. Dessa används ofta när personsäkerhet är viktigt eller det är specificerat i maskin- eller säkerhetsstandarder. Det är vanligt i industrier exempelvis stålverk och pappersbruk där man har arbets- och säkerhetsceller.
Vi kan tillhandahålla MTTFd-värde för beräkning av Performance Level PL enligt EN ISO 13849-1.
Hydrauliska nödstopp montage och modeller
Nedan är förslag på kombination av ventil och block, men det passar självklart också med andra ventiler som har rätt kavitet. Schemasymbolen utgår från att man ritar hydraulschemat med montageplatta och förbrukare i botten och riktningsventilen överst i stapeln.
Flera av SUNs hus är vändbara, det vill säga man kan använda ett hus till flera olika funktioner. Man måste se till att man vänder huset rätt.
För att montera staplarna behövs också gängade stänger och mutterstycken, de kan beställas i standardlängd, eller färdigkapade.
Samtliga block finns i aluminium (3000 psi/ 210 bar) eller stål (5000 psi/ 350 bar) och kan fås med ytbehandling
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Modell
Cavity
Height of sandwich
Abort sandwich
Manufacturer: Sun Hydraulics
A and B, 760 coil
Manufacturer: Sun Hydraulics
233-3201M
T21A+T9A
62,0
235-3201M
T22A+T9A
76,0
236-3201M
T22A+T9A
76,0
237-3201M
T23A+T9A
89,0
238-3201M
T24A+T9A
115,0
Modell
Cavity
Height of sandwich
Abort sandwich
Manufacturer: Sun Hydraulics
A and B, 770 coil
Manufacturer: Sun Hydraulics
233-3202M
T21A+T9A
70,0
235-3201M5
T22A+T9A
76,0
236-3201M1
T22A+T9A
76,0
237-3204M
T23A+T9A
88,0
238-3201M1
T24A+T9A
115,0
Modell
Abort sandwich
Manufacturer: Sun Hydraulics
A and B, 770 coil, high capacity
Manufacturer: Sun Hydraulics
237-3203M2
T24A+T9A
120,0
Modell
Cavity
Height of sandwich
Abort sandwich
Manufacturer: Sun Hydraulics
A and B, position indicator switch on logic valve, 770 coil
Manufacturer: Sun Hydraulics
233-2243M
T-13A
44,5
Modell
Abort sandwich
Manufacturer: Sun Hydraulics
A and B, position indicator switch, 770 coil
Manufacturer: Sun Hydraulics
235-3202M
T2A+T9A
81,3
237-3202M
T17A+T9A
89,5