Drilling and mechanical machining of acrylic
Drilling acrylic requires bits with the right geometry and controlled feed rate — otherwise PMMA cracks or melts around the hole; professional processing gives clean mounting holes, threads and chamfers without stress or micro-cracks. PLEXIPOL carries out drilling, threading and mechanical machining of acrylic and other plastics in Warsaw — mounting holes for standoffs, screws and lighting, repeatable across batches. Quote based on drawing with hole spacing.
What is mechanical machining of acrylic
PMMA is hard but brittle — standard metal drill bits cause chipping and cracking. Correct drilling requires bits with modified point angle, low feed rate and cooling. We provide:
- Hole drilling — mounting holes (standoffs, screws, hangers), functional holes, holes for lighting.
- Threading — threads in the plastic or for inserts/bushings.
- Chamfering and countersinking — for screw heads, hole edge chamfers.
- Mechanical machining — fitting, cutouts, finishing work (combined with CNC milling for more complex jobs).
Who it’s for
- Signage and POS manufacturers — holes for standoffs and hangers in signs, panels.
- Industry and assembly — mounting plates, guards with functional holes, threads.
- Companies ordering batches with repeatable hole spacing.
How the process works
- Enquiry and drawing — send a drawing with spacing, hole diameters and type (through, threaded, chamfered).
- Quote — we select tools and parameters for the material and thickness.
- Production — controlled drilling/threading to avoid cracking or melting.
- Pickup/shipping — collect in Warsaw or courier delivery.
Technical parameters
| Materials | Acrylic PMMA, PVC, polycarbonate, Dibond, HIPS, PET-G |
|---|---|
| Operation types | Through holes, threading, chamfering, countersinking, finishing machining |
| Production | Drill press / hand machining and Kimla CNC router (holes and pockets from file) |
| Lead time | 5 working days standard (up to 7 for larger orders) |
| Minimum quantity | From 1 piece |
Why PLEXIPOL
Operating in Warsaw since 1995 (ul. Puławska 48). We combine machining with cutting and milling — the part leaves cut, drilled and ready to install. Experience with PMMA lets us drill without chipping or stress that leads to cracking around holes over time.
FAQ
Why does acrylic crack when drilled with a regular bit?
Metal bits have a point angle that “bites into” brittle PMMA and tears the material. Acrylic requires bits with modified geometry and low feed rate — hence clean, crack-free holes.
Do you thread acrylic?
Yes — we thread the plastic directly or install threaded inserts/bushings, depending on the load on the joint.
Are holes near the edge safe?
Too close to the edge risks cracking; we maintain a minimum edge distance depending on thickness. We advise when reviewing the drawing.
Enquiry form → plexipol.com.pl/kontakt
Phone: 22 845 65 25 · Mobile: 501 22 12 33 · Email: [email protected]
Send your project for a quote
Send us your project or dimensions — we’ll prepare an individual quote and advise on material choice. No obligation.