Application Overview

In a flexible packaging workshop, film rolls may need to be collected from a pallet, reoriented and presented to a converting or packaging machine. This application example considers the SINOLIFT CTD1025AF semi-electric roll lifter with pneumatic expanding mandrel for that sequence, where access to the roll core and a compatible machine handover arrangement are available.

The customized truck combines manual travel with electric lifting, pneumatic core gripping, electric shaft rotation and powered lateral shift. These functions let the operator address height, orientation and small lateral alignment changes using one handling unit. The supplied configuration is listed at 0.3 metric ton rated capacity, with its maximum roll diameter of 1500 mm specifically stated for vertical pickup.

Application Background and Handling Challenges

A roll prepared for storage may have a different core orientation from the position required at the machine. Handling therefore involves more than raising its weight. The operator must gain access to the core, establish suitable internal support and provide clearance for the roll to change orientation without contacting the pallet, floor or nearby equipment.

At the receiving station, lifting height and side-to-side alignment must both match the loading arrangement. Repeatedly moving the entire truck to correct a small offset can complicate the approach in a restricted machine-side area. Pallet construction, support-leg clearance and the roll’s swept space during rotation also influence whether the task is feasible.

The SINOLIFT Handling Solution

The CTD1025AF engages a compatible roll through its core using a pneumatic expanding mandrel. The supplied air shaft is 400 mm long. Core bore, core condition and the required engagement length must suit the configured mandrel before a roll can be lifted or turned. An internal grip places the handling interface within the core rather than requiring an external clamp around the wound material.

Electric lifting provides multi-speed jog control with stepless speed adjustment. Electric shaft rotation provides a 90-degree upward movement, while electric lateral shift offers 50 mm to the left and 50 mm to the right. Together, these motions can support a planned change from pickup orientation to the receiving position, subject to verified rotation clearance and machine compatibility.

The truck is manually pushed and uses reinforced support legs. The listed pallet arrangement straddles an 800 mm pallet and enters a 1400 mm pallet, but those dimensions alone do not establish compatibility with a particular pallet design. This is a customized solution: the specifications below describe the supplied CTD1025AF reference configuration, and changes require confirmation for the actual roll and workflow.

Key Features for This Application

Typical Operating Process

Step 1: Confirm the handling arrangement. Check roll weight, core dimensions, pickup orientation and receiving height against the agreed configuration. Establish the pallet approach, route, rotation space and method of transferring the roll to the machine.

Step 2: Approach and engage the core. Manually position the truck so the mandrel aligns with the accessible core. Insert it to the approved engagement position and apply pneumatic expansion according to the equipment instructions. Confirm the required grip before lifting.

Step 3: Lift clear of the support. Use electric lifting to raise the gripped roll sufficiently for the planned handling movement. Keep the roll within the approved load and clearance conditions for the configuration.

Step 4: Reorient and transfer. Where the process requires it, use the specified 90-degree upward rotation in a verified clear area. Manually move the truck along the prepared route using the travel position prescribed for the supported roll.

Step 5: Align with the receiving station. Adjust vertical position using the lifting controls and correct small lateral offsets with the powered side shift. Check that the receiving support and loading interface can accept the roll in its presented orientation.

Step 6: Handover and withdraw. Complete the approved transfer so the receiving equipment supports the roll before releasing pneumatic grip and withdrawing the mandrel. A machine spindle, cradle or other receiving device must be evaluated for this interface; compatibility is not established by the lifter’s dimensions alone.

This sequence describes a typical application. The equipment instructions and the agreed machine transfer procedure determine the actual operating steps.

Practical Application Benefits

Combining lifting, core gripping and rotation on one truck can help reduce the need to move a roll between separate devices during preparation. Where the staging and receiving arrangements match the attachment, the same unit may support the sequence from pickup through orientation and final presentation.

Internal core engagement may help limit the need to handle the wound outer surface directly, which is relevant when preparing film rolls for production. This depends on a sound, compatible core and an approved grip setting; the attachment does not establish suitability for every film construction or core material.

Powered lateral adjustment can help resolve small final offsets at the machine, while adjustable lifting supports height matching. These capabilities may simplify positioning within the available workspace, although manual travel still requires assessment of the floor, route and operator effort. No measured productivity or cost improvement is claimed for this example.

Relevant Technical Specifications

These values apply to the supplied customized CTD1025AF specification. Final selection should retain the stated load conditions and distinguish the mast description from the shaft center position and overall extended height.

The 1500 mm diameter limit is stated for vertical pickup and should not be assumed to apply to every rotation or transfer condition. Confirm the load rating at the actual load center and orientation, usable shaft height range, core fit and pneumatic supply requirements before specifying the task.

Selection Considerations

1. 1

   Roll and core compatibility. Provide maximum roll weight, diameter, width, core bore, core material and condition. Confirm mandrel engagement, load center and allowable load throughout lifting and rotation.

2. 2

   Pickup, rotation and handover. Share pickup and receiving heights, required orientations, machine interface drawings and clearance around the complete rotation path. Confirm how the receiving device supports the roll before mandrel release.

3. 3

   Pallet and workspace access. Provide pallet dimensions and construction, aisle and turning space, overhead obstructions and floor conditions. Check the support-leg geometry and manual travel route against the complete loaded envelope.

4. 4

   Utilities and duty. Describe handling frequency, travel distance and environmental requirements. Confirm compressed-air pressure, supply arrangement, grip control and battery charging requirements, together with any requested custom changes.

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