Machine Introduction
Servo Control Radiator Expanding Tube Machine
Purpose
Hydraulically-servo expansion machine for mechanically locking aluminum or copper tubes to louvered fins in tube-type radiators, charge-air coolers and condensers. One servo-driven cycle produces uniform interference-fit joints that maximize heat-transfer efficiency.
Process Sequence (≤6 s)
Clamp cover plate → Expand mandrel in → Expand mandrel out → Raise cover → Eject core – all executed under closed-loop servo control.
Key Features
1. 7 kW high-dynamic servo motor with 20-bit absolute encoder; ball-screw actuator delivers expansion force 5–25 kN programmable in 0.1 kN steps.
2. Quick-change mandrel cassette: accommodates tube Ø 6–16 mm, wall 0.3–0.8 mm; swap time <3 min.
3. Precision linear guide ways ±0.02 mm repeatability; automatic taper compensation prevents tube ovality.
4. HMI recipe manager: stores 300+ core specs; auto-calculation of expansion ratio (1–4 %) based on tube/fin material and target pull-out strength.
Performance
1. Expansion uniformity ≤0.05 mm ovality
2. Joint pull-out force ≥120 N (Al tube) / ≥180 N (Cu tube)
3. Cycle rate: 600–800 tubes/h
4. MTBF ≥4 000 h; mandrel life ≥500 000 cycles
Machine Parameters
Servo Control Radiator Expanding Tube Machine
| Core width (main board length) | 195mm---600mm |
| Core height (distance between main boards) | 300mm--800mm |
| Core thickness | 22mm---50mm |
| Expansion speed | 25cm/s adjustable |
| Expanding capacity | 4.5T |
| Equipment power supply | 50Hz, 380 V, 16A |
| Equipment dimensions | L2750×W1050×H1900㎜ |
| Equipment weight | About 1200kg |
Servo-Controlled Radiator Expansion Machine for Sale
This machine is the expansion joint equipment between the radiator fin and the heat pipe of the tube type radiator, through the whole operation process of the equipment: the cover plate pressing → expansion tube into → expansion tube back → cover plate rising → finish, so that the tube and fin of the tube type radiator reach the required requirements. It is powered by a servo motor and completes the tube expansion in one working cycle by mechanical means. After the tube is expanded, the diameter of the heat pipe is larger than the aperture of the fin, so that the tube and the sheet are tightly expanded as a whole to achieve higher heat dissipation efficiency.
Product SKU: 6
Product Brand: DAG
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