Peel-and-Seal Envelope Machine: Which Line Do You Need?
November 10, 2026
The short version: A wider window-patching machine is not automatically a double-line machine. HAOXING’s current TC-1200PRO is a full-servo model for larger carton blanks, but its brochure does not specify a double-line mode. If two-line production is essential, confirm the configuration and per-line limits in writing before ordering.
What changes between one and two lines?
Running two compatible blanks side by side can make sense for repeat jobs, but only if the machine is configured for it and each blank, window and film patch fits the per-line working area. Do not infer two-line capability from the catalogue width or an hourly capacity figure.
HAOXING presents the TC-1200PRO full-servo window patching machine for cake boxes, general cartons and tissue boxes. The brochure provides one set of limits for the model, not separate limits for single- and double-line modes. Ask HAOXING to confirm a current two-line solution if that arrangement is required.
TC-1200PRO: check the limits for your flat blank
The following are the TC-1200PRO figures in HAOXING’s window-patching brochure. Dimensions are length × width for the flat paper blank or window, not the finished folded box. Confirm feed direction, window placement and supplied configuration on a drawing.
| Published specification | TC-1200PRO |
|---|---|
| Paper blank size | 150 × 160 mm minimum; 780 × 1,200 mm maximum |
| Window size | 30 × 50 mm minimum; 350 × 450 mm maximum |
| Paper weight | 200–1,000 g/m² |
| Film thickness | 0.04–0.25 mm |
| Published capacity | 25,000 pieces/hour* |
*The brochure qualifies high-speed mode for products up to 300 mm in length. Published capacity is not a guarantee for every job; verify accepted output with your own stock and film.
These are model limits, not double-line limits. A maximum blank width of 1,200 mm does not establish that two narrower blanks can run simultaneously. Compare the window-patching machine range against your actual drawings.
A practical way to decide
- Draw the flat blank. Show the full size, feed direction, opening, glue area and film patch.
- Check every representative SKU. Include smallest and largest blanks, not just the most common carton.
- Check paper and window fit. A blank may fit while the proposed window or film placement does not.
- State the line arrangement. For two-up production, request written model-specific per-line dimensions and output.
- Compare accepted pieces per shift. Include setup, changeovers and rejects rather than catalogue speed alone.
The right configuration depends on your SKU mix and trial result. Do not substitute the TC-1200PRO’s published single set of limits for a separate two-line specification.
What to record in a sample trial
Supply the intended board, print finish, adhesive and film. Run representative blanks on the proposed configuration. Record dimensions, settings, run time, accepted pieces, rejects and stoppages. Inspect patch position, glue placement, wrinkles, bubbles, opening damage and delivery consistency.
If punching or creasing is needed in the same process, mention it before requesting a quote. HAOXING lists separate punching-and-creasing models; do not assume those functions are standard on the TC-1200PRO.
Send one complete inquiry pack
- Finished-box photos and a dimensioned flat-blank drawing with feed direction.
- Blank, opening and patch dimensions for representative SKUs.
- Board grade and weight, coating, print finish, adhesive and film specification.
- Required line arrangement and target accepted pieces per shift.
- Typical order sizes, changeover frequency and samples for testing.
Use the seven-point window-patching checklist to prepare materials, then contact HAOXING for a current configuration review and sample trial.
Frequently asked questions
Does the TC-1200PRO brochure specify double-line operation?
No. It provides model specifications without a separate double-line table. Ask HAOXING to confirm any suitable current two-line configuration and mode-specific limits in writing.
Is 25,000 pieces/hour guaranteed for my carton?
No. It is a published capacity, with high-speed mode qualified for products up to 300 mm long. Verify accepted output in a trial with your own materials.
