Four-axis dispensing robot

What it does

A benchtop robot that deposits adhesives, resins and pastes along programmed paths: dots, lines and patterns, placed and dosed the same way on every sample. It moves the tip over the sample in X, Y and Z, across 300 × 300 mm with 100 mm of vertical travel, and a rotating table turns the sample, a fourth axis for dispensing all around a part.

Repeatability is ±3 µm on the linear axes and 0.005° on the rotation. A confocal laser sensor measures the height of the surface without touching it, so the robot keeps the same gap between tip and surface on parts that are curved, tilted or not quite flat: the gap decides how wide and thick a bead comes out. A camera finds reference marks to align each sample, and optical inspection checks the deposit.

Fluid is dispensed from syringes by time and pressure, up to 7 bar, or through a valve, with tips down to 33 gauge for the smallest dots. Programs are stored as recipes, so a process tuned once is repeated on the next batch.

What we use it for

• Glue joints on crystals and optics

  Measured beads and dots of adhesive that fix crystals, optics and parts to their holders, the same on every piece.

• Curved and uneven parts

  A constant tip height over curved substrates and fixtures, kept by the confocal sensor.

• Resins and functional materials

  Thin lines and small dots of resins, pastes and other materials on samples and prototypes.

Working with us

Tell us the fluid, the part and the pattern you need: we can run dispensing tests on your samples and tune the process with you.