Where it fits in production
The vertical expander is typically used after fin pressing, tube preparation and coil assembly. It expands tubes through the fin pack to improve mechanical contact and heat transfer stability.
Tube expansion
Vertical Expander for heat exchanger coil assembly.
After fins and tubes are assembled, expansion helps secure tube-to-fin contact and supports heat transfer performance in HVAC and refrigeration coils.
Send expander RFQ
Catalog model range
| Item | Catalog reference |
|---|---|
| Models | SKLZ-850, SKLZ-1200, SKLZ-1600, SKLZ-2000, SKLZ-2500, SKLZ-3000 |
| Maximum tube expanding length | 200-850 mm, 200-1200 mm, 200-1600 mm, 250-2000 mm, 300-2500 mm or 300-3000 mm by model |
| Tube diameter | 5 mm, 7 mm, 7.94 mm, 9.52 mm and other project sizes |
| Tube wall thickness | 0.25-0.81 mm |
| Maximum tube expander quantity | 8 |
| Maximum holes in each expander | 60 |
| Total power reference | 7.5 kW, 15 kW or 22 kW by configuration |
| Hydraulic pressure | <=14 MPa |
Specification points
Fin hole layoutProvide fin hole diameter, row pitch, tube pitch and whether the arrangement is staggered or parallel.
Expansion toolingConfirm expansion rods, heads, holes per expander and tooling change needs.
Control and hydraulic systemThe catalog highlights servo expanding control, touch screen operation and hydraulic oil temperature control.
Plant constraintsConfirm power supply, ceiling height, coil loading method and available floor space.