The Industry Standard in Parenteral Vial Sealing

A stoppered vial is a prevalent parenteral drug container closure system. The system however should not be considered integral until the rubber stopper is crimped firmly in place with sufficient compression against the vial, assuring all potential leakage is cut off at the seal interface. It is well understood that seal quality is critically important to maintaining sterility and stability of the drug product.

Seal integrity is achieved by adequately compressing the elastomeric closure against the sealing surface of the vial and maintaining that compression with a crimped aluminum ferrule. The amount of elastomeric compression is determined by the force applied during the crimping process. The Westcapper® controls the force being applied to the elastomeric closure during this process which in turn, reduces variability of stopper compression, producing more consistent seals.

The RW Westcapper®

A number of design improvements have been made to the RW Westcapper® . Of these the most significant is the placing of the vibratory cap bowl to the discharge side of the capper. This greatly reduces the chances of particulate contamination in vials as they are sealed. The overall height of the capper has also been reduced due to the head height adjustment no longer raising and lowering the hopper system as it has been moved off to the side. The Westcapper® has also been updated to help you meet the European Annex 1 regulations of the Manufacture of Sterile Medicinal Products.

Annex One: Manufacture of Sterile Medicinal Products

Follow the link below to learn more about how the RW Westcapper® can help you meet European Annex 1 regulations for the Manufacture of Sterile Medicinal Products.

The RW Westcapper®
The RW Westcapper®
The RW Westcapper®
The RW Westcapper®
The RW Westcapper®

Maximum operation speed is 750 vpm, depending on cap size. Desired machine speed is entered onto the Total Controls Touchscreen. The capper will automatically ramp up to set speed when put in the RUN function. This enables standard operations procedures to be met consistently with each vial.

A standard capper includes rolling casters. Stationary stainless steel legs are also available. Standard vial flow is from left to right. Vial flow from right to left is an available option. Conveyor height can range from 35-1/4″ to 38″. Standard conveyor length is 98″ with other conveyor lengths available as options.

The entire capping area of the machine is enlclosed with an OSHA compliant safety shield. The capper will immediately shut down when the shield is opened.

When Space is Limited

The RW Westcapper®

The RW Westcapper® is also available in a smaller footprint design making it ideal for applications where space is at a premium and Annex 1 requirements are not necessary.

Maximum operation speed is up to 750 vpm, depending on cap size and spindle count. The desired machine speed is entered onto the Total Controls Touchscreen. The capper will automatically ramp up to set speed when put in the RUN function. This enables standard operations procedures to be met consistently with each vial.

A standard capper includes rolling casters. Stationary stainless steel legs are also available. Standard vial flow is from left to right. Vial flow from right to left is an available option. Conveyor height can range from 35-1/4″ to 38″. Standard conveyor length is 98″ with other conveyor lengths available as options.

The entire capping area of the machine is enclosed with an OSHA compliant safety shield. The capper will immediately shut down when the shield is opened.


RW Westcapper® Technologies

The Genesis RW Westcapper® features state-of-the-art technologies to help you achieve container closure integrity with every vial you seal. Follow the link below to learn more about these technologies in detail.


RW Westcapper® Matrix

18 Spindles 12 Spindles 6 Spindles
Max Speed (vpm) 750 600 300
Sealing Technology Sealing Rail Sealing Rail Sealing Rail
Hopper System Gravity Fed Vibratory Gravity Fed Vibratory Gravity Fed Vibratory
Seal Size 13-32mm 13-32mm 13-32mm
Seal Style All Standard Serum All Standard Serum All Standard Serum
Vial Diameter 12.7-38.1 mm 12.7-57.15 mm 12.7-82.55 mm
Vial Height 28.575-158.75 mm 28.575-158.75 mm 55.549-180.84 mm
Construction Stainless Steel Stainless Steel Stainless Steel
Control System PLC Touchscreen Interface PLC Touchscreen Interface PLC Touchscreen Interface
Vial Infeed Sensor
Jam Control Sensor