Trimmer Platen Drive Upgrade for Reciprocating Screw Blow Molding Machines

Replace your splined crankshaft with a shaft which is double keyed and features split cranks. This enhanced system is designed to eliminate clearance at the crankshaft, which in turn greatly reduces the backlash which occurs due to the reversing load characteristic of your trimmer. This backlash is very damaging to your trimmer drive components because it introduces premature failure which will ultimately result in down time and lost production in your operation.

You can further upgrade your platen drive system by replacing your double 50 chain with double 60 chain. This chain provides increased strength, which translates to longer life and increased reliability.

These retrofit packages are available for trimmer models 10039, 10040, 10041, and 10042. The double keyed shaft, split crank retrofit only (not the double 60 chain retrofit) is available for model 10026 trimmers. Most 10041 trimmers built after 1993 already have these features.

Summary of Benefits

• Smoother, more consistent, operation
• Less jams
• Longer platen drive component lives
• Less maintenance required
• Increased trimmer productivity

Double Keyed Shaft, Split Crank Retrofit

• Crankshaft -Bearings (4)
• Split Cranks (2)
• Thrust washers (8)
• Link Pins (2)
• Snap rings (2)
• Crank Pins (2)
• Keys (5)
• Hubs (2)
• Jam Nuts (4)
• Driven Sprocket
• Fastening Screws (10)

Double 60 Chain Retrofit

• Idler
• Drive Sprocket
• Master Link
• Driven Sprocket
• Roller Chain (12’)
• Key Stock
• Offset Link
• Fastening Screws

Double Keyed Split Crank Exploded Views

Reference TSDR-9911

Exploded views show the crank shaft (with keys top and bottom), the split cranks and the sprocket. It shows how the split crank is clamped onto the double keyed shaft.