About us
A Bulgarian workshop for concrete machinery and steelwork
Since 2005 SIMA-MA has manufactured concrete machinery, steel structures and custom parts — bringing practical workshop experience to complete installations and single components alike.

About us
Experience you can build on
SIMA-MA Ltd. (СИМА-МА ЕООД) is based in Cherven Bryag, in Pleven Province, Bulgaria. From our workshop we build concrete batching plants with 30 m³/h and 60 m³/h output, and the equipment around them: valves and silo components, hoppers and conveyors, mixer wear liners, concrete recyclers and pontoons.
We also work as a subcontractor, producing metal parts and welded assemblies in batches to other manufacturers’ drawings.
From drawings and material selection to fabrication and installation, we focus on equipment that fits your site, your process and your maintenance needs. Because design, fabrication and installation stay in one team, we can answer quickly when something needs to change — or when a plant needs a part tomorrow.
- Founded
- 2005
- Workshop
- Cherven Bryag, Bulgaria
- Output
- 30 / 60 m³/h


Workshop
Machines in our workshop
New CNC machines for cutting and forming sheet and plate, alongside conventional lathes, milling and drilling machines for machined parts.
Cutting and forming
CNC machines for sheet and plate. The band saw, press brake and plate bending machine were bought with EU co-funding.
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CNC plasma cutting machine
KBCUT 2000 HD-P
- Maker
- Kimex, Bulgaria
- Control
- CNC
- Used for
- Parts and profiles cut from sheet to drawing
-
CNC hydraulic press brake
Ermaksan Power-Bend Falcon 3100×135
- Bending force
- 135 t
- Bending length
- 3100 mm
- Control
- Delem DA-58T
- Year
- 2022
-
Four-roll plate bending machine
Şahinler 4R HS 20-245
- Drive
- Hydraulic, four rolls
- Used for
- Cylinders, shells and curved plate
- Year
- 2021
Machining
Conventional machine tools for shafts, bushings, flanges and spare parts. The oldest, a pillar drill, was built in 1971.
-
Universal lathes
C11 (ZMM Sofia) · C13 (Pernik) · ZRMM Vratsa
- Made in
- Bulgaria
- Used for
- Shafts, bushings, flanges and threads
-
Milling machines
FU 251 universal · TOS FN25
- Made in
- Bulgaria · Czechoslovakia
- Used for
- Slots, keyways and flat faces; rotary table for round parts
-
Pillar drilling machines
PK-32 and others
- Year
- 1971 (PK-32)
- Used for
- Drilling and countersinking
-
Tool and cutter grinder
- Made in
- Poland
- Used for
- Sharpening milling cutters, drills and lathe tools
Principles
How we work
- 01
Practical engineering
Equipment designed for the way it will actually be operated and maintained.
- 02
Made in-house
Cutting, forming, welding, assembly and painting in our own workshop.
- 03
Fast response
When production can’t stop, replacement parts and service come first.
- 04
Long-term support
Spare parts and advice for the equipment we supply.
Process
From drawing to commissioning.
One team takes the job through every stage — so nothing is lost between suppliers.
-
Brief
You send the requirement — capacity, drawings, photos of a worn part or the site plan.
-
Engineering
We confirm dimensions, materials and compatibility, and prepare or adapt the drawings.
-
Fabrication
Cutting, forming, welding, assembly and painting in our workshop in Cherven Bryag.
-
Installation
Delivery, assembly on site and connection to your existing equipment.
-
Commissioning & service
Testing, final acceptance and spare parts for the years that follow.
Clients
Trusted by established names in construction.
SIMA-MA always provides us with high quality and a rapid response, no matter what issue we have.
SIMA-MA combines expertise, precision engineering and integrity — delivering concrete-production machines that rival global standards. A trusted partner for the precast and concrete industries.
SIMA-MA is a reliable partner whose integrity and competence we rely on, and which we recommend to all prospective partners.
They resolve every problem with a sense of responsibility, quality workmanship and real professionalism.
After many years of cooperation, we are very satisfied with the specialists’ competence, the delivery logistics and the professional servicing of our equipment.
They are always there when I need them, even if only for advice. Their response is instantaneous.
EU co-funded capacity upgrade
Our production capacity was improved under project BG16RFOP002-2.058-0005-C01, co-funded by the European Union through the European Regional Development Fund under OP “Innovation and Competitiveness” 2014–2020.
Project detailsWhere we are
Cherven Bryag, Bulgaria
Our workshop is in Cherven Bryag, Pleven Province. We build batching plants across Bulgaria and ship spare parts and valves internationally.
Our workshop location: 43.2671° N · 24.0744° E (opens Google Maps in a new tab) ContactStart a project
Have a drawing, a worn part or a new plant in mind?
Tell us what you need. We reply with questions, a proposal or a quote.



