Surface Rewinder Production Estimator

Disclaimers:

Cycle time disclaimer: Jennerjahn Machine is providing this production estimator for reference only. The ability for your particular material on a particular machine to achieve the calculated cycle times must be physically verified by running the set-up on a Jennerjahn surface rewinder. The following items are just some of the material, machine, personnel, and company dependent variables affecting cycle times that this tool cannot take into account.

Material resistance to stretching and tearing will affect the maximum speed, acceleration rate, and deceleration rate
Product requirements for roll starts will affect change-over times
Operator skill to tune the settings of the machine to the product could limit cycle times

Production estimate disclaimer: Jennerjahn Machine is providing this production estimator for reference only. The ability for your particular facility to achieve the calculated production must be verified by running the set-up on a Jennerjahn surface rewinder over a period of time. The following items are just some of the material, machine, personnel, and company dependent variables affecting production that this tool cannot take into account. These are in addition to the cycle time variables listed above.

Material resistance to stretching and tearing will affect the plant efficiency
Operator skill to tune the settings of the machine to the product will affect plant efficiency
Operator skill and efficiency will affect master roll change time
Company planning will affect the machine utilization

Production Estimator

Material Type

Mill Roll Width (in)iRange: 20-165

Mill Roll Length (ft)

Finished Roll Width (in)iRange: 1.5-165

Finished Roll Length (ft)

Maximum Speed (fpm)iRange: 0-2300

Acceleration Time (s)

Deceleration Time (s)

Change-over Time (s)

Plant Efficiency (%)iRange: 0-100

% Machine UtilizediRange: 0-100

Mill Roll Change (min)iRange: 1-30

Hours Worked Per Shift

Rolls Per Cycle:

Acceleration Rate (ft/s²):ii. 4.8-3.2 Acceleration rates are aggressive for any material
ii. 3.2-1.9 Acceleration rates are average for most papers and aggressive for tension sensitive materials
iii. 1.9-1.3 Acceleration rates are conservative for most papers and average for tension sensitive materials
iv. 1.3-0.6 Acceleration rates are only for extremely tension sensitive materials

Deceleration Rate (ft/s²):ii. 4.8-3.2 deceleration rates are aggressive for any material
ii. 3.2-1.9 deceleration rates are average for most papers and aggressive for tension sensitive materials
iii. 1.9-1.3 deceleration rates are conservative for most papers and average for tension sensitive materials
iv. 1.3-0.6 deceleration rates are only for extremely tension sensitive materials

Cycle Time (Sec)

Cycles Per Mill Roll

Rolls Per Mill Roll

% of Time Spent On Mill Roll Changes

Rate (Cycles per Hour)

Rolls per Hour

Rolls per Minute

Rolls Per ShiftiNote: If the same product is ran for a full shift

Master Rolls Per ShiftiNote: If the same product is ran for a full shift

Efficiency (No Utilization)

Efficiency (With Utilization)

Disclaimers:

Production Estimator

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