A technologically advanced, compact and waferless sterile tube welder designed for sterile connecting with reliability, efficiency and quality.

A technologically advanced, compact and waferless sterile tube welder designed for sterile connecting with reliability, efficiency and quality.

510K Cleared

July 15, 2022

The Genesis RapidWeld™ II STW received 510K clearance on July 15, 2022 from the Center for Biologics Evaluation and Research (CBER) as a class II device approved for sterile connections/welds between two segments of PVC tubing used in blood/blood component processing applications. To learn more about the Genesis RapidWeld™ II STW, contact one of our experienced sales representatives.
Genesis RapidWeld II Sterile Tube Welder



Genesis RapidWeld II STW

Model #


Catalog # 480-RW-2607-02
Regulatory Class II & 510(k)
Blade Module Kits

Uninterrupted welding with no jamming.

250 Welds


500 Welds 480-RW-2478-02
1000 Welds 480-RW-2478-03

Introducing the innovative and technologically advanced Genesis RapidWeld™ II STW sterile tube welder. With a waferless design and infrared technology, the RapidWeld™ II STW is easy to use, cost effective and eco-friendly (no biohazard waste from disposable copper wafers). 

RapidWeld™ II STW utilizes a precision cutting blade and infrared heater to complete the welding process in a functionally closed system for better control and accuracy. The design eliminates the need for consumable wafers.

Create strong reliable welds in 14-15 seconds. The RapidWeld™ II STW can help improve operator efficiency and maximize the shelf life of valuable blood products.

Advanced Blade Module
Stainless steel construction which permits continuous uninterrupted welding with no jamming.

User Interface with LCD Touch Screen Display
LCD color touch (4" x 3") screen display provides operators with step by step instructions for performing a weld. Available in English, Spanish, French, German, Portuguese and Italian.

Infrared Heating Element 
Designed for continuous operation while maintaining a high temperature for producing sterile welds.

Patented Tube Holder Clamps
The unique clamp design strips fluid away from the weld site while keeping the tubes securely in place. This process can help eliminate blood cell necrosis in blood products.

Lid Lock Mechanism
Protects operators during the welding process and inhibits accidental or unintentional interruption of the weld.

Applications include, but are not limited to:
• Pathogen reduction processing
• Component aliquots
• Quality control sampling
• Bacterial testing
• Leukoreduction
• Collection set modification
• Cell washing and freezing
• Apheresis set modification
• Transferring research samples
• Component pooling
• Cellular Therapy
• Other PVC applications



Technical Specifications

Model GRW-430-02
Tubing Material Polyvinyl Chloride (PVC)
Tubing Size Outer Diameter (OD): 3.98 mm to 4.88 mm
Inner Diameter (ID): 2.91 mm to 3.23 mm
Wall Thickness (WT): 0.55 mm to 0.85 mm
Length 33 cm (13 in)
Width 14.2 cm (5.6 in)
Height 9.9 cm (3.9 in)
Weight 2.5 kg (5.5 lbs)
Power Cord Power supply output cord length: 1.3 m (4 ft)
Power supply inlet: IEC 60320-C13
North American and International cord sets are available
Power Supply Input Voltage AC 100-240V
Operating Current ~ 1.0 A
Frequency 50/60 Hz
Power Supply Output DC 12V, 7.08A max, 85W max
Power Consumption 70 Watts max
Optimal Operating Temperature 10°C — 40°C ambient (50°F — 104°F)
Storage Temperature 10°C — 40°C ambient (50°F — 104°F)
Relative Humidity 10% — 90% (avoid condensing atmosphere)
Nominal Weld Cycle Interval 14-15 seconds

Blade Module Kits

Stainless steel construction for continuous uninterrupted welding with no jamming.

Product Advanced Blade Module
250 welds 480-RW-2478-01
500 welds 480-RW-2478-02
1000 welds 480-RW-2478-03
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