Screw-on screw capping machine

verticalpneumaticmanual

Product description
Benchtop pneumatic capper for controlled torque tightening of twist-off and plastic screw caps. Stainless steel base. Manual height adjustment of the capping head via handwheel and counter providing a reference based on container height. Standard maximum container height 350 mm; customizable options available. Vertical pressure and torque are adjustable. Adjustable container locking via a pneumatic piston. Mechanical neck-gripping system for low-density plastic bottles. Custom PVC centering/positioning devices can be manufactured for capping small bottles.

Operation
The operator sets the machine according to container and cap size, places the cap in the spindle or on the jar/bottle mouth, and presses the two side buttons simultaneously to close the cap. Torque is constant and repeatable once set.

Air supply and pneumatic system
Machine is pneumatic and requires a compressor. Recommended: 2 HP, tank ≥ 80 L, air flow ≥ 300 Nl/min. Oil-less system recommended; pneumatic components are designed to run dry and require no lubrication. Torque is adjusted by varying supply pressure. A pneumatic vane motor with stainless steel casing is available in different torque versions. A spring-loaded compensator softens the contact phase between cap and container regardless of capping head descent speed.

Format change
A dedicated spindle is required for each cap format. Solutions include a stainless steel or aluminum body; balls and spring for inserting the cap into the chuck; friction rubber or internal knurling to match cap shape. Magnetic chucks are available for twist-off metal caps sizes: 038, 43, 48, 53, 58, 63, 66, 70, 77, 82 (standard and deep).

Application sectors

• Food
• Cosmetic
• Chemical

Technical specifications

• Base dimensions: 450 x 450 mm
• Production: approx. 500–600 bottles/h
• Weight: 25–30 kg
• Power supply: compressed air 3–7 bar
• Consumption: max. 190 Nl/min at 7 bar
• Standard maximum container height: 350 mm (customizable)
• Recommended compressor: 2 HP, tank ≥ 80 L, air flow ≥ 300 Nl/min
• Oil-less pneumatic components; no lubrication required
• Torque adjustable via air pressure; pneumatic vane motor available in different torque versions
• Spring-loaded compensator for softened contact phase
• Adjustable container locking via pneumatic piston
• Mechanical neck gripping for low-density plastic bottles
• Dedicated spindle required per cap format; options: stainless steel or aluminum body, balls and spring insertion, friction rubber, internal knurling, magnetic chucks for specified twist-off sizes