Channel Letter Equipment
Ascent TMB-3 Channel Letter Bender and Trim Machine
For making Aluminum Trim, and Flanging Side Return
Convert flat aluminum coil into 1-inch or 2-inch aluminum trim, shaping it into letters
The aluminum coil is lined with PVC on the inside, allowing you to connect the trim to the cover with the same glue you use for plastic trim.
- Make the flanging on the channel letter side returns from 0.040" aluminum coil
- Channel letter side returns from 0.040" aluminum coil for reverse halo ready for welding
- Processing all plastic trims 3/4" and 1" Trim Cap
- 360° cutter: accurate notch position front and back
- Custom colors available for national programs
See it in action
Features
An automatic trim-cap machine that's competitively priced, the highest-quality, and built for output speed.
- Make the flanging on the channel letter side returns from 0.040" aluminum coil.
- Channel letter side returns from 0.040" aluminum coil for reverse halo ready for welding
- As a plastic trim processing machine, it handles all plastic trims 3/4" and 1" Trim Cap
- Make aluminum trim cap from flat coil — converting flat aluminum coil to aluminum trim and forming the shape of the letter
As an aluminum trim-cap machine, the benefit is that the trim will not fade, crack, or distort over time. In addition, of course, you benefit from significantly reducing the labor in manually forming plastic trim.
As a trim-cap cost-saving machine, the price per foot for the aluminum coils is lower than the cost of traditional plastic trim, and the customer saves on assembly time.
The aluminum coil comes in a variety of colors.
We keep a good stock in White, Black, and Red.
We equipped the machine with a 360° cutter that notches accurately in the correct position, front and back.
Custom colors available for national programs.
Materials for aluminum trim
The Ascent TMB-3 channel letter trim machine for side returns.
Spec sheet
Already own an Ascent TMB-3 and need more aluminum trim coil? Order it here.
Frequently asked
Common questions about this equipment
What does the price include? Are there hidden fees?
At Ascent Equipment, our pricing is completely transparent. The quoted price includes everything needed for operation — no add-ons, hidden fees, or extra charges. The price includes shipping and on-site installation and training. Also included: full 3-year warranty (2 years parts & labor, plus 1 additional year parts-only); ongoing software updates at no additional cost; lifetime support and remote diagnostics installed on the machine. With technicians strategically located in Buffalo, Toronto, and Kentucky, help is always nearby.
What is your warranty?
Ascent CNC bending machines include a 3-year warranty: 2 years comprehensive (parts & labor) + 1 additional year (parts only).
Can you make aluminum trim with the Ascent TMB-3?
Based on Ascent Equipment's review of publicly available North American machines as of August 2026, we have not identified another machine offering this same combination of capabilities. The Ascent TMB-3 can take an aluminum coil and convert it into a trim cap, including shaping the letter.
What is the cost of aluminum coil trim vs. plastic?
Per foot, aluminum trim is 25% cheaper than plastic trim.
How do you attach the aluminum trim to the acrylic?
We add a PVC strip to the coil; standard glue (the same as used for plastic trim) can be utilized.
Can the Ascent TMB-3 process standard plastic trims?
Yes, it can process standard plastic trim for notching.
Can the Ascent TMB-3 make side returns?
The machine can create side returns with or without flanging.
What about training and installation for the Ascent TMB-3?
Installation and training for all Ascent bending machines are included in the price at your site, typically taking three days.
What gauge aluminum coil does the Ascent TMB-3 use to make trim?
The Ascent TMB-3 forms trim from flat aluminum coil with a PVC backing, the same backing that lets the finished trim bond with standard trim-cap adhesive. The trim itself uses a special aluminum alloy at 0.6mm thickness to form the crown; for side returns, the Ascent TMB-3 processes aluminum coil up to 0.040" thick.
Does aluminum trim come pre-finished in colors, or do I have to paint it?
It comes pre-finished — the aluminum coil is available in a variety of colors, with white, black, and red kept in regular stock and other colors available to order, including custom color-matching for national account programs.
How long does it take to switch the Ascent TMB-3 from one trim color or coil to another?
Changeover is fast since the Ascent TMB-3's material setup is software-driven rather than requiring mechanical retooling — loading a new coil is the main step.
What is F-trim, and when would I choose it instead of standard trim cap or trimless?
F-trim is a specialized preformed aluminum profile that the 5AS notches and bends around the letter shape, producing a slim, architectural metal border. It costs more than Ascent TMB-3 aluminum trim and requires a 1/8" polycarbonate face fastened with tiny nails rather than adhesive — it's the right choice for premium letters where a narrow, precise metal edge matters more than material cost. If you'd rather avoid a visible metal border altogether, trimless letters are also available on both the 5AS and 4AS using Ascent extrusions in 1.75", 2", 3", and 4" widths. See our full Ascent TMB-3 vs. F-Trim comparison.
Read next
Articles about this equipment
Making Aluminum Trim with the Ascent TMB-3
How the Ascent TMB-3 converts flat aluminum coil into trim cap on demand — why aluminum outlasts plastic and the cost savings in practice.
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Ascent TMB-3 Aluminum Trim vs. Ascent 5AS F-Trim
Ascent TMB-3 forms economical flat aluminum coil with PVC backing into trim-cap-style trim. The 5AS processes a premium F-trim profile requiring polycarbonate.
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How to Make a Channel Letter — The Ascent Way with Ascent TMB-3
A step-by-step guide to building a channel letter with the Ascent CNC Router, Ascent TMB-3, and Stapler — including how the TMB-3 saves 20–50% on material.
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