Donem Makina - Kocaeli, Turkey
DMMET: PU/PIR sandwich panel lines, discontinuous panel presses, polyurethane foam machinery and roll forming equipment. Kocaeli, Turkey. Est. 1996.
DMMET (Donem Makina)
Donem Makina was established in Kartepe, Kocaeli, Turkey in 1996, and operates two factories totalling 3,500m². The company has more than 130 employees and states more than 25 years of experience designing, manufacturing, and installing complete systems for the production of PU/PIR sandwich panels, corrugated sheets, and metal roof tiles.
DMMET describes itself as a Middle East and Western European leader in this sector, with sales and after-sales service support. The company states 143 completed projects, 114 "happy customers," and more than 20 honours and awards. DMMET operates as a group with several related companies (referenced but not individually named on this page: including entities that appear to cover polyurethane technology and related trading operations).
The company publishes genuinely technical blog content covering material feeding systems, roll forming defects and troubleshooting, and preventive maintenance for PU equipment — indicating real engineering depth behind the product range.
What DMMET Makes
PU-PIR Sandwich Panel Lines (complete continuous production line, built in sections)
- Uncoiling Section
- Roll Forming Section (special rollforming system)
- Foaming Section
- Mineral Wool Section
- Continuous Press
- Cutting Section
- Cooling Section
- Stacking Section
- Packing Section
- Polyfilm Wrapping (stretch wrapping) Section
Single Panel Production Line — single-sided panels with rigid PU foam core (~40kg/m³, CFC-free), for photovoltaic roofs, new buildings, renovation, and agricultural/industrial buildings
Discontinuous Sandwich Panel Lines — for a wider range of dimensions, facings, and foam systems
- High Pressure Polyurethane Foam Machines
- Discontinuous Hydraulic Press
- Sandwich Panel Roll Forming Units
Refrigerated Truck Body Panels Production Line
Polyurethane Technology
- Polyurethane Foam Machines (high pressure and low pressure)
- Polyurethane Foam Continuous Slabstock Lines
- Polyurethane Foam Moulded Foam Production
- Mixing Heads (continuous type, L-type, I-type)
- Peripheral Equipment: chillers, Pentamet, flowmeters, pressure pumps, filters
Panel Line Peripheral Equipment
- Corona Section (surface treatment for adhesion)
- Pentane Dosing Systems
- Pre-Glue Spraying System
- Heating System
Metal Technology (roll forming equipment, feeds panel lines and sold standalone)
- Trapezoidal Sheet Roll Forming Machine
- Metal Tile Roof Roll Forming Machine
- Metal Steel Floor Deck Roll Form Machine
- Flexible U/C/Z/Sigma Profile Purlin Machine
- Metal Sheet Cut-to-Length Line
- Metal Sheet Slitting Line
Industries Served
- Insulated panel manufacturing (roofing, wall cladding)
- Cold storage and refrigerated transport (refrigerated truck bodies)
- Photovoltaic roof systems
- Agricultural and industrial building construction
- General polyurethane foam product manufacturing
Why Buy From DMMET
- Established 1996 — nearly 30 years of experience
- Genuinely comprehensive Sandwich Panel Line range: continuous PU/PIR, single panel, discontinuous, and refrigerated truck body lines all under one supplier
- Deep polyurethane technology stack (foam machines, mixing heads, slabstock and moulded foam lines) — not just the panel line shell
- Also supplies the metal roll forming equipment (trapezoidal, tile, floor deck, purlin) that feeds panel lines or sells standalone
- Positioned as Middle East/Western European regional leader
- 143 completed projects, 20+ industry awards
- European manufacturing base — a genuine alternative to China-based suppliers for panel line buyers
Frequently Asked Questions
What does DMMET make?
Complete PU/PIR sandwich panel production lines (continuous and discontinuous), single panel lines, refrigerated truck body panel lines, the full polyurethane foam machinery stack (foaming machines, mixing heads, slabstock/moulded foam lines), and metal roll forming equipment (trapezoidal sheet, tile roof, floor deck, purlin, slitting/cut-to-length lines).
Where is DMMET based?
Kartepe, Kocaeli, Turkey.
How long has DMMET been in business?
Established in 1996 — nearly 30 years.
Can DMMET supply mineral wool core panel lines as well as PU/PIR?
Yes — a dedicated mineral wool section is part of its continuous panel line offering, alongside PU/PIR and polystyrene.
Does DMMET make equipment for refrigerated transport panels?
Yes — a dedicated refrigerated truck body panels production line is part of its range.
Does DMMET supply the metal roll forming machines as well as the panel lines?
Yes — trapezoidal sheet, metal tile roof, floor deck, and purlin roll forming machines are all part of its "Metal Technology" range, usable either to feed a panel line or as standalone equipment.
What is the difference between continuous and discontinuous panel lines?
Continuous lines run panels through in one uninterrupted process at high volume; discontinuous lines use a press-based batch process, offering more flexibility in panel dimensions, facings, and foam systems for lower-volume or more varied production.
Does DMMET offer after-sales support internationally?
Yes — the company positions itself around global sales and after-sales service, with immediate access to trained technical personnel.