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.

Large aggregate hopper under fabrication in the SIMA-MA workshop
Fig. 01Large aggregate hopper under fabrication in the SIMA-MA workshop

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
Steel aggregate hopper on its support legs in the workshop hall
Fig. 02Steel aggregate hopper on its support legs in the workshop hall
Twin-shaft mixer drive with motors and gearboxes on its frame
Fig. 03Twin-shaft mixer drive with motors and gearboxes on its frame

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.

  • CNC plasma cutting machine

    KBCUT 2000 HD-P

    Maker
    Kimex, Bulgaria
    Control
    CNC
    Used for
    Parts and profiles cut from sheet to drawing
  • Band saw

    Uzay Makina UMS-PLC 350

    Cutting range
    Ø350 mm
    Control
    PLC
    Year
    2022
    EU co-funded
  • CNC hydraulic press brake

    Ermaksan Power-Bend Falcon 3100×135

    Bending force
    135 t
    Bending length
    3100 mm
    Control
    Delem DA-58T
    Year
    2022
    EU co-funded
  • Four-roll plate bending machine

    Şahinler 4R HS 20-245

    Drive
    Hydraulic, four rolls
    Used for
    Cylinders, shells and curved plate
    Year
    2021
    EU co-funded

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.

  1. Brief

    You send the requirement — capacity, drawings, photos of a worn part or the site plan.

  2. Engineering

    We confirm dimensions, materials and compatibility, and prepare or adapt the drawings.

  3. Fabrication

    Cutting, forming, welding, assembly and painting in our workshop in Cherven Bryag.

  4. Installation

    Delivery, assembly on site and connection to your existing equipment.

  5. 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.

Glavbolgarstroy

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.

Holcim

SIMA-MA is a reliable partner whose integrity and competence we rely on, and which we recommend to all prospective partners.

Transportstroy

They resolve every problem with a sense of responsibility, quality workmanship and real professionalism.

Unistroy

After many years of cooperation, we are very satisfied with the specialists’ competence, the delivery logistics and the professional servicing of our equipment.

Alphamix

They are always there when I need them, even if only for advice. Their response is instantaneous.

Boris Nikolov — NEK, electrical engineer
  • Glavbolgarstroy
  • Holcim
  • Transportstroy
  • Unistroy
  • Alphamix

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 details

Where 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) Contact

Start 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.