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Sign inCartesian robots
Linear-axis architecture for rectangular work envelopes.
Define your requirements
- Define each axis travel, structural support and loading conditions.
Specify each axis and the machine interface
Write down the useful travel of each linear axis and the clearance around the machine. For molding take-out work, include the mold opening, extraction position and discharge area. Equal strokes do not mean equal rated load or arm configuration.
Questions to resolve before shortlisting
- What are the required vertical, crosswise and traverse positions?
- Does the published load include the proposed gripper and extracted part?
- Which molding-machine signals and mounting dimensions must match?
- Where will parts be placed and how will access to the machine be preserved?
What to send with your sourcing brief
Attach machine and mold drawings with the required stroke and load conditions. The linked molding guide compares the published arm forms and ratings of the two listed SHIP models.
Platform procurement checklist. Confirm the equipment and integration requirements with the supplier.
Buyer decision notes
Build a stroke, load and machine-interface decision
Cartesian equipment moves along defined linear axes, but the sourcing problem is not solved by ordering three stroke lengths. Establish usable pickup and discharge positions, the carried assembly and installation access. The directory currently lists two SHIP molding take-out models whose equal published strokes conceal different arm forms and load ratings.
Prepared by RobotLineup Editorial · Analysis updated . Platform analysis, not an independent equipment test.
Compare proposals on the same basis
Ask each bidder to answer these items against the same drawings, parts and operating sequence. An unanswered item is a comparison gap, not a passed requirement.
| Decision | Evidence to request | Avoid this assumption |
|---|---|---|
| Axis travel | Useful positions along each axis and the limits imposed by the mold, mounting and tooling. | Equal catalog strokes imply interchangeable installations. |
| Carried load | A weight schedule for parts, runner, gripper and attachments, with the supplier rating definition. | Only the finished part consumes the stated load allowance. |
| Arm form | Single-section or telescopic arrangement shown on a model-specific installation drawing. | The same vertical stroke implies the same installed height. |
| Machine integration | The exact molding-machine interface and agreed take-out/placement sequence. | Machine tonnage alone establishes compatibility. |
Compare the two SHIP entries by the actual constraints
SVAI-850S is listed with a single-section arm and 4 kg maximum load; SVAW-850S has a telescopic arm and 5 kg maximum load. Both published entries have 850 mm vertical, 730 mm crosswise and 1350 mm traverse travel. These values identify comparison points; they do not confirm the mounting height or permitted load distribution.
The reported minimum take-out times are 1.4 and 1.5 seconds respectively. Ask which motion and test conditions those figures describe. Do not treat the difference as a guaranteed production advantage: mold opening, gripping, extraction and placement belong in the installation timing.
Worked sourcing brief
Illustrative procurement exercise. Assumptions below are invented for explanation; this is not a customer case, trial result or quotation.
Assume the picked assembly comprises a 2.5 kg part, a 1.2 kg gripper and 0.5 kg of adapters and retained material. The arithmetic total is 4.2 kg. That exceeds a 4 kg headline allowance if the supplier defines it as that complete carried assembly; it is below 5 kg by mass alone. Ask SHIP to confirm the rating definition, geometry and permitted motion before selecting either model. This is a mass-screening exercise, not approval of the 5 kg option.
What to record before acceptance
Agree the test method, responsibilities and pass conditions before ordering. The items below are records to request, not a completed validation.
- Save the machine, mold and mounting drawings together with the selected arm configuration.
- Record the supplier response to the complete carried-load schedule and interface requirements.
- Demonstrate the take-out and discharge sequence with representative parts and agreed timing boundaries.
Common buyer questions
Should all three strokes be as long as possible?
Specify the useful positions and available space first. Extra travel is not evidence that the mounting or path fits.
Is a molding-machine tonnage range enough to select a take-out robot?
No. Mold access, mounting, interface and carried assembly still require review.
Continue the comparison
Explore application requirements
Related selection guides
Injection Molding Robot Selection: Payload and Stroke Are Different Checks
Compare two SHIP take-out robots with equal strokes but different load ratings and arm forms, then prepare the configuration questions a supplier must answer.