Assuming one impression opportunity per cylinder revolution, selected hourly accepted-sheet throughput is 60 times rpm times the selected acceptance fraction. This reference does not predict print quality, press capacity or safe operating speed.
Electric motion-control review for Single Cylinder Printing Press Mechanism
For designers moving away from single cylinder printing press mechanism, a linear actuator gives a packaged motor, gear train, screw, limits, and optional feedback. That convenience still needs a proper sizing and mounting review.
For press, clamp, or fixture motion, verify the actuator cannot overload tooling or create an unguarded pinch point. The control circuit should define the safe state after a jam or power loss.
If replacing a cylinder, measure pin-to-pin lengths, stroke, mounting style, and available envelope carefully. A matching force rating does not prove the electric actuator will fit the same space.
- Compare continuous force, not only peak force, before considering an electric actuator.
- Check speed under load, duty cycle, and installed length against the original system.
- Confirm the environment, ingress rating, and control requirements are compatible.
For a FIRGELLI electric alternative, start by comparing the motion against the FIRGELLI electric linear actuators. The linear actuator replacement finder can help when the existing device has a readable model or part number, but final selection still requires a mounting and duty-cycle check.
Single-Cylinder Press Throughput Reference
Explore one-impression-per-revolution throughput scenarios with a connected cylinder, bed and representative sheet path.
Equation Used
- There is one impression opportunity per cylinder revolution.
- Each selected acceptance fraction is constant for its scenario.
- The animation speed is scaled for viewing.
- Stops, jams, sheet geometry, print quality, duty cycle and ratings are excluded.
Speed labels are independent selected scenarios and are not automatically sorted.
Impression cylinder, bed and sheet path
The animation shows one finite rotating cylinder above a flat printing bed and a representative sheet moving through the nip. Rotation speed is scaled for viewing and does not reproduce actual press timing.
What the calculator determines
Enter setup, nominal and high-mode speeds plus selected accepted-sheet fractions. The calculator reports three arithmetic throughput scenarios and rejected-sheet equivalent at the high-mode selection.
Selected throughput arithmetic
Accepted sheets/hour = 60Nη for one opportunity per revolution; high-mode loss = 60Nhigh(1−ηhigh).
Selected-input arithmetic
At 40 rpm and a 0.95 accepted fraction, the nominal arithmetic reference is 2280 accepted sheets/hour.
Scenario arithmetic only
The result excludes sheet size, makeready, feeder timing, gripper limits, impression count per revolution, stops, jams, drying, ink transfer, registration, quality criteria, maintenance, duty cycle and equipment ratings. Input speed labels are independent selections and are not automatically ordered.
Questions
Is one revolution always one finished sheet?
No. It is the explicit simplifying assumption of this reference.
Is the high-mode loss a measured waste rate?
No. It is the complement of the selected acceptance fraction.
References & Further Reading
- Wikipedia contributors. Printing press. Wikipedia
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