Piston Presses

Roto-Sieve piston presses from Läckeby Products combine the good dewatering capacity of a screw press with the capability of a hydraulic press to lift and transport the dewatered material. This is made possible by the drive system’s ?exibility.FunctionThe piston in the press housing is driven forward by a worm gear or ?at gear motor and a trapezoidal threaded shaft. On the piston there is a guiding pin, which activates the microswitches positioned at each end of the piston stroke. The forward microswitch steers the piston’s turning point to a press zone with openings for high dewatering or past the openings if a less dry material is re-quired. Maximum dewatering can be achieved by extending the interval in the press zone. Extra microswitches at each end ensure that the piston does not go too far if any of the ordinary microswitches malfunctions. To create the resistance required for dewatering, the piston press should be connected to a press pipe with a lifting height, or a short press pipe with an adjustable counter-pressure device. Press water and ?ushing water is collec-ted in a ?xed trough underneath the press housing.K PROTO-SIEVE® PISTON PRESS Technical features • Flexible drive system• Ef?cient dewatering capability• Compact design • High operational reliability Process bene?ts • Maximises dewatering• Transports and lifts dewatered material• Reduces required ?oor space• Minimises maintenance needs ®Läckeby Products develops, designs and manufactures piston presses. Coordinated expertise and production ensures high quality service and delivery. Läckeby Products can also participate in the planning stage and take on responsibility for everything from dimensioning to installation. Through our involvement at the planning stage, we can offer a total process guarantee.DesignPiston presses are available in two models and are manufactured as standard in stainless steel or acid-proof steel.KP 200: Press housing with 200 mm diameter, hopper-opening 500x200 mm, motor power 1.1 kW, normal capacity 0.3-0.5 m3/h and an outgoing dry substance rated at approx. 25%. KP250: Press housing with 250 mm diameter, hopper-opening 400x250 mm, motor power 1.5 kW, normal capacity 0.5-0.7 m3/h and an outgoing dry substance rated at approx. 25%. For special applications, piston presses can be supplied with a range of motor powers to meet increased requirements for lifting height or capacity. Läckeby Products also manu-factures and customises a number of practical accessories for piston presses such as; discharge chutes, regulator cones, pressure pipes, spring-loaded counter forces, sack maga-zines and electric control cabinets.ReferencesLäckeby Products has supplied more than 300 piston presses to both industrial and municipal plants worldwide. Technical data KP 200 KP 250 A Total length, standard mm 1892 1892/2157* B Width mm 485 522 C Height mm 450 508 D Flange, PN 10 DN 200 DN 250 E Diameter, inside mm 200 250 F Inside hopper width mm 200 250 G Inside hopper length, standard mm 500 400 H Spray water connection, outside mm 19 19 J Water trough connection, outside mm 76 76 P Motor power, standard/special kW 1.1 1.5/2.2* Q Capacity, normal m3/h 0.3-0.5 0.5-0.7 R Voltage - 400 V A 2.81 3.55/5.22 207Recommendations for installation of Roto-Sieve piston pressesat municipal wastewater treatment plants KP 200 KP 250 INTERVAL, Normal - Press position / Pause position s 8/180 8/180 Y LIFTING HEIGHT, with bends, 2x90º / 2x45º, without increase in pipe size m 1.5-2.0 1.5-2.5* X TRANSPORT LENGTH, after lifting, without increase in pipe size m 1.5-2.0 2.0-4.0* X TRANSPORT LENGTH, after lifting, with increase in pipe size m 2.0-5.0 4.0-8.0* TRANSPORT LENGTH, without lifting, with max. one bend m 5.0-8.0 8.0-10.0** With more powerful motor.LÄCKEBY PRODUCTS Läckeby Mosekrogsvägen 2, SE 380 31 Läckeby, Sweden Phone +46 480-381 00 Fax +46 480-606 63 Kungälv Bultgatan 28, SE 442 40 Kungälv, Sweden Phone +46 303-24 64 80 Fax +46 303-928 90 www.lackebyproducts.com