Foam pump assembly machine
Body, stem, spring, ball valve, gasket and dip tube, with a prime and leak check before discharge. Six process stations plus test, one operator.
servo / pneumatic
PLC + HMI
custom fixture
PLC + HMI
custom fixture
Foam pump assembly machines
Three numbers decide the layout of a foam pump line: output per stroke, annual volume, and how many pump sizes the line has to cover. A line that runs one size for years can be a single-station machine with a fixed fixture; a line that covers six sizes needs quick-change tooling and a station layout that survives a changeover without a full reset.
Station sequence
Most foam pump lines follow the same order: body feeding, stem and spring insertion, ball valve placement, gasket fitting, dip tube insertion, then a prime and leak check before discharge. What changes between projects is how the spring is oriented and whether the gasket is fitted before or after the stem. Both choices affect scrap rate far more than machine speed does.
What sets scrap rate
- Spring feeding. A spring that arrives sideways jams the insertion station. This is solved in the vibration bowl tooling, not by a faster actuator.
- Gasket damage. Fitting force is too high, or the gasket is cut on a sharp edge. Force monitoring on the station catches both.
- Dip tube length. A tube 0.5 mm off seats high and leaks under pressure, even though it looks correct.
- Leak test pressure. Testing below the pressure the bottle sees in service passes pumps that fail after a week on the shelf.
Scope of supply
From a drawing to a running line.
01
Quote from your drawing
Station layout, cycle time and price, with the feeding tooling and test station costed separately.
02
Tooling design
Bowl tooling and fixtures drawn for your part, agreed before any metal is cut.
03
Build
Frame, stations, PLC program and guarding, built to the agreed drawing set.
04
Run-off
Run with your own samples in Chashan, with a video and the reject count per station sent with the machine.
If the pump is still in development, send the current 3D model and tell us which dimensions are frozen. We quote the tooling that touches those dimensions first, so a later change does not invalidate the whole line.
Next step
A pump line is quoted from four documents. Send them and we answer in three days.
2D drawing or STEP file of the pump, the material of each part, the bottle neck thread, and the leak limit you accept. That is enough to come back with a layout and a price.
- 01Pump drawing, 2D or STEP
- 02Material of body, stem, gasket, dip tube
- 03Bottle neck thread
- 04Output per stroke and the leak limit
- 05Annual volume and shifts per day