How to choose between single-station and dual-station desktop dispensing machine?

Bolli Automation Co., Ltd. desktop vision dispensing machine hassingle-stationand dual-stationboth types use syringe dispensing valve, the core difference lies in“number of workstations”. based on the equipment's real parameters and the public syringe dispensing principle, this article objectively compares the working method, footprint, and application scenarios of the two architectures, helping make selection judgments by batch and cycle time, avoiding subjective speculation.

I. Common points: both rely on the ”time-pressure” dispensing of the syringe dispensing valve

both machines are equipped withsyringe dispensing valve: the controller outputs timed pressure pulses, pushing the adhesive in the syringe out through the needle; the dispensing amount is determined byair pressure, application time, needle diameter, and adhesive viscosityjointly determined. Both machines' working air pressure is 600-1200 hpa, repeat positioning accuracy +-0.02-0.05mm, maximum speed 500mm/s (customizable above 800mm/s), driven by stepper motor + synchronous belt + linear guide, equipped with Bolli's self-developed control system, teaching programming, and graphic import. The time-pressure type is sensitive to adhesive viscosity and syringe residual-the emptier the syringe, the more compressible air in the system, the less dispensing under same etc. parameters, so batch consistency must rely on stable pressure source, temperature control, and residual management.

II. How the single-station machine (Bolli D331 as example) works

single worktable X300xY300xZ100mm, machine box 580x460x600mm, weight 42kg. Dispensing and loading/unloading are serial in the same station:operator loads material -> equipment dispenses -> unloads material, the equipment has idle clamping during dispensing gaps. It is compact, easy to move, low cost, suitable for small batch, multiple variants, frequent changeover scenarios, and convenient for flexible placement of stations along the production line.

III. How the dual-station machine (Bolli D5331 as example) works

a single dispensing head with two worktables Y1, Y2 (each 300mm, X axis 500mm, Z axis 100mm), machine box 600x660x600mm, weight 55kg. While the dispensing head dispenses at Y1, the operator loads/unloads at Y2; after one round, the head moves to the other station to continue. Loading/unloading and dispensing run in parallel; idle clamping is compressed, the effective dispensing ratio per unit time is higher, suitable for fixed products with large loading/unloading time share.

IV. Key trade-offs: footprint, cycle time, and batch size

the dual-station machine box is larger, about 13kg heavier than the single-station, but saves serial etc. waiting; the single-station is more compact, cheaper, and easy to move. Both have the same maximum speed and accuracy; the difference lies in“effective dispensing ratio per unit time”. Note:dual-station does not equal double capacity; the improvement depends on the ratio of single-piece dispensing time to loading/unloading time, must be calculated based on actual cycle time, not simply estimated by the number of stations.

V. How to judge the selection

small batch, multiple variants, frequent changeovers, or tight space, prefer single-station;medium-to-large batch, fixed product, long loading/unloading time, prefer dual-station. both types support syringe dispensing valve and Bolli's self-developed control, static elimination, and automatic dispensing force compensation; specific processes are subject to sample testing verification.

6. Summary

of single-station and dual-stationthe essential difference is the parallel capability brought by the number of workstations, not accuracy or speed. Bolli uses self-developed control systems on both D331 single-station and D5331 dual-station desktop vision dispensing machine to link teaching programming, graphic import, and syringe dispensing valve, providing equipment and sample testing support for industries such as 3C, automotive electronics, and medical, etc. For specific selection and process verification, contact Bolli Automation Co., Ltd. 13352947677.