Three Guns from One Small Box: Multi-Point Gluing Without the Second Machine

Multi-point dispensing usually means multi-machine dispensing. If a product needs adhesive at three positions in one cycle, the conventional answer is three melters — or one large host with a sprawling hose layout. The ASD-D4 4L Precision Gear Pump Hot Melt Glue Machine offers a third option: up to 3 glue guns and 3 hoses from a single 4L unit.

The footprint argument

The ASD-D4 measures 590×340×546mm and weighs 50kg. That is small enough to sit beside a bench or at the end of a short line without consuming production floor space. For workshops where a large multi-gun host would not physically fit — or could not be justified on capital cost — the ability to drive three dispensing points from one compact unit changes what is feasible.

Where three guns earns its keep

Three-gun configurations suit products with multiple bond lines in close proximity. Typical examples include:

Gift and presentation boxes, where base, lid, and lining each require adhesive in a single pass

Foam gasket and cushioning assembly, where several edges are bonded simultaneously

Craft and shoe upper assembly, where lining and upper materials are joined at multiple points

Small carton and label bonding, where two or three beads are applied per cycle

In each case, the alternative to a three-gun host is three separate passes or three separate machines — both of which add handling time and variability.

The gear pump's role in multi-gun consistency

When one pump feeds multiple guns, output consistency across guns becomes the central question. The ASD-D4 uses a Taibang motor driving a 6–20cc gear pump. Because gear pump displacement is fixed per revolution, the volume delivered is mechanically defined rather than dependent on air pressure stability. That gives a more predictable baseline for balancing flow across multiple dispensing points.

The built-in double-layer filtration system protects the pump and all connected guns from particulate clogging — a more significant concern in multi-gun setups, where a single blocked gun can disrupt the whole cycle.

Practical considerations

Multi-gun operation on a 4L tank means adhesive turnover is faster than in single-gun use. With a melting rate of 6kg/hour and a 4L capacity, the ASD-D4 is suited to short-to-medium cycles rather than continuous high-volume three-gun operation. The optional low-level sensor with glue-shortage alarm becomes considerably more valuable in this configuration, since running dry mid-cycle affects all three dispensing points at once.

The manufacturer

The ASD-D4 is produced by Guangzhou Keqirui Machinery Equipment Co., Ltd. , a hot melt glue machine equipment manufacturer integrating research and development, manufacturing, sales and service. Since the establishment of the company, Keqirui has been delivering quality hot melt machine products to the majority of users and has won the trust of customers. Sincere cooperation and common development is the business philosophy of Keqirui Machinery; the company has won praise from customers through high-quality product quality and honest business services, while creating maximum value for customers.