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STEP 03 / 12 Heat treatment Model TH09

Annealing Oven

Punched aluminium tubes are annealed to relieve stress and regain ductility. High-temperature evaporation cleans surface lubricant off the tube for reliable coating adhesion downstream.

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XUNTANG Annealing Oven — real machine photo

Why this machine

Core advantages

  • Uniform, stable temperature relieves internal stress effectively
  • High heating efficiency with low energy consumption
  • High automation with precise, programmed temperature control
  • Superior furnace sealing cuts oxidation and decarbonization
  • Robust, durable structure with a low failure rate and easy maintenance
High outputEnergy savingSafe & stableHigh precision

Technical parameters

Annealing Oven — TH09

Two build sizes cover the large-format and small-format tube ranges. Figures are catalogue references, confirmed against your order.

ParameterLarge modelSmall model
Tube diameterØ 19 – 35 mmØ 13.5 – 25 mm
Tube length110 – 200 mm70 – 145 mm
Production speed85 pcs/min95 pcs/min
Temperature range0–500 ℃ (recommended 460 ℃)
Temperature accuracy± 2 ℃
Heating methodBaking
Curing time3–4 min
Preheating time1 h 20 min
Power supply3-phase 5-wire / 380 V / 100 A
Power57.5 kW
TransmissionChain (adjustable speed)
Control modePLC + HMI
Dimensions2380 × 1345 × 2847 mm
Weight2300 kg

How it works

Equipment description

The finished aluminium tubes that have work-hardened during punching are annealed to eliminate residual stress and restore the material’s original plasticity and flexibility. At the same time, excess lubricant on the inner and outer surfaces is removed by high-temperature evaporation, giving a reliable base for firm adhesion of the subsequent inner coating, base coating and tail coating.

Where it sits in the line

← STEP 02 Trimming & Threading Machine Thread rolling, head facing, tail trimming and shoulder polishing shape the raw blank. STEP 04 → Buffer Accumulator Cools and buffers tubes on-line to synchronise upstream and downstream pace.
All 12 machines

Buyer questions

Selection notes for Annealing Oven

What does the Annealing Oven do in an aluminium tube production line?
Annealing Oven (TH09) is step 3 of the XUNTANG collapsible aluminium tube production line. Punched aluminium tubes are annealed to relieve stress and regain ductility. High-temperature evaporation cleans surface lubricant off the tube for reliable coating adhesion downstream.
When should buyers pay special attention to the Annealing Oven?
Annealing Oven is usually reviewed when buyers confirm tube diameter, tube length, target output, line balance and the upstream or downstream station requirements around the heat treatment stage. XUNTANG confirms the final configuration against the buyer's tube specification and workshop layout before quotation.
Can the Annealing Oven be supplied alone or only as part of a complete line?
The Annealing Oven can be discussed as a station in a new turnkey line or as part of an upgrade discussion for an existing aluminium tube line. Buyers should provide current machine photos, tube size range, output target and any quality issue they want to solve so the configuration can be checked without guessing.

Need the Annealing Oven — on its own or as part of a line?

Tell us your tube size and output and we'll confirm the right build size and configuration.

Request a quote