V-Process (Vacuum Sealed Molding)

The problem

Chemical binders drive VOC, sand waste and shakeout cost on bulky jobs that do not need a resin mold.

What Jianheng does

Film, vacuum, sand, coating and pattern packaged so V-process runs as production, not a lab demo.

Fits

Counterweights, wear parts, axles, bolsters, heat-resistant trays, vehicle-bridge parts — cases on the original site.

Usually the wrong answer when

Very thin-wall high-pressure work already locked into a flaskless green-sand cell.