Often, yes—but compatibility means more than attaching the feeder to the press. Check the material range, required feed length, available feeding time, mounting and pass-line height, pilot-release requirement and control interface.

The feeder and press must agree on when feeding is permitted, when feeding has finished and how faults or stops affect the line. The required signals and safeguards depend on the equipment combination; a spare connector alone does not establish compatibility.

For an application review, send the press model, feeder nameplate, material width and thickness, feed length, target production rate and photographs of the installation. Use the press-interface acceptance guide when comparing the proposed connection and acceptance checks.

The controller commands a servo-driven roll system to advance the strip by the selected distance. Servo feedback controls the drive motion; the rolls must then transfer that motion to the material without unacceptable slipping or marking.

That distinction matters: a correctly displayed length does not prove that the strip moved by exactly that distance. Roll condition, grip, upstream resistance, release behavior and alignment can all affect the result at the material.

Verify the actual strip advance and the finished-part requirement, not just the screen value. The feed-pitch guide explains how commanded length and measured results differ.

On an NC servo feeder, these terms describe the release mechanism, not two different ways of driving the feed rolls. Both configurations use servo-controlled feeding.

Mechanical release uses a mechanical actuation arrangement; pneumatic release uses an air-operated arrangement. Where the die uses pilots, the release mechanism frees the strip at the required point in the cycle so the pilots can locate it, then restores grip before the next feed.

Neither label establishes a universal maximum press speed. The complete release response must suit the press motion, die, feed length and material. Confirm the fitted configuration and use the NC feeder adjustment guide for the broader setup review.

Identify the specific handwheel before turning it. Depending on the feeder design, a handwheel may adjust roll pressure, a mechanical position or another setting. Similar-looking controls do not necessarily perform the same function on different models.

A pressure adjustment changes how the rolls grip the strip; it does not replace the programmed feed-length setting. Too little grip may allow slipping. Excessive grip can mark or deform the material and is not a reliable cure for every feed error.

Use the approved setting method for the machine and verify both strip movement and surface condition. If the function is unclear, send HENLI a photograph showing the control and nameplate before changing it.

Position the guides to maintain the intended strip path without squeezing the edges or creating unnecessary drag. There is no single clearance that applies to every feeder, material width and edge condition.

Check the actual strip, including width variation and burrs, and follow the machine's adjustment instructions. A guide should not be used to force a misaligned strip into the die. Tightening it may hide the alignment problem while increasing resistance or damaging the edge.

When material wanders, review the upstream strip path and feeder-to-die alignment as well as the guides. See the material skew and alignment guide.

Not necessarily. A percentage may scale a controller-defined speed setting; it is not automatically metres per minute or a percentage of the press's strokes per minute. Check the documented meaning for that control version.

The real requirement is to complete the programmed move within the permitted feeding window, including acceleration, deceleration and any required settling or confirmation time. A longer feed usually changes that demand even when the displayed percentage stays the same.

Increasing the setting is not a substitute for checking available time and material behavior. Use the feed-time calculation guide to review the application.

First describe what happens: does the feeder fail to release the strip, fail to regrip, or operate but at the wrong point in the cycle? These observations lead to different checks.

For pneumatic release, the condition of the specified air supply and the valve or actuator response can matter. For mechanical release, the actuation and linkage condition matter. In either case, the release event must match the die's pilot action and the next feed.

Do not compensate for a release problem by repeatedly changing pitch or increasing roll pressure. Stop the machine for inspection, follow the prescribed isolation procedure and record the symptom for qualified review. The commissioning guide covers controlled verification of the complete sequence.

A repeatable offset is useful evidence, but it is not proof of a single cause. Confirm the active length, units and program step, then compare several measured advances using the same reference and method.

Separate an incorrect command or measurement reference from material slip, movement during release and downstream positioning effects. Also record whether the error is present before the pilots locate the strip or only in the resulting part.

Do not adjust calibration or enter a compensating length before the cause is understood. The feed-error diagnosis guide provides the measurement and troubleshooting workflow.

Look for what changed when the problem began: a new coil, a different material or thickness, a job change, altered loop condition, contamination, an alarm or an interruption.

Record a short sequence of actual measurements rather than only the largest error. Note whether the strip slips, retreats, wanders or becomes tight upstream. These observations help distinguish a grip problem from an unstable material supply or release event.

Stop if there is unexpected motion, collision risk or recurring unexplained feed behavior. Avoid repeated automatic restarts to reproduce the fault. For visible slip or retreat, use the slipping and material-retreat guide.

Yes, when the installed controller supports multi-step feeding. A program can associate a feed length with a repeat count, then advance to the next programmed step according to its control logic.

The available step count, units, program storage and cycle behavior depend on the controller and software version. Do not assume that an example showing three rows means every NC feeder has exactly three stages.

Before production, verify the sequence against the job drawing, including what happens at the last step and after an interruption. The multi-step NC feeding guide explains lengths, repeat counts and sequence verification without treating one controller screen as universal.

Loss of power is not a guarantee that every part of the feeder, press and coil line is safe. The stopping behavior, holding devices, retained program state and restart sequence depend on the installed equipment. Pneumatic pressure, coil energy or other stored energy may remain.

Before inspection, isolate the relevant equipment and release or secure stored energy using the approved procedure. Before restarting, confirm the strip position, die condition, active program, active step and repeat count where applicable, and required recovery sequence with authorized personnel.

A retained number on the screen does not establish that the physical strip is in the correct place. Never assume that power restoration itself permits production to resume.

The sensor detects the material condition specified by its design and position; it does not, by itself, guarantee a particular stopping position for the press.

The line's response also depends on the connected control logic, stopping capability, remaining strip and distance from the sensor to the tooling. These must be considered together so the last usable feeds are handled as intended.

Confirm the sensor function and test the agreed end-of-material response during commissioning. Do not bypass it to use the final strip length. Ask HENLI to review the actual feeder, sensor location and press interface when the required stop behavior is uncertain.