TZV Gredelj

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Services

As a part of its production program TŽV Gredelj offers additional services from design and development of products to cutting, bending, punching, CNC turning, CNC milling and painting on various machines and production lines as well as different types of welding.

On the mentioned lines and machines we are able to offer the following services:
  • Surface protection with surface preparation
  • Plastic deformation processing
  • Particle separation processing
  • Welding
  • Thermal cutting and cutting with metal band saws
  • CNC turning and universal turning
  • Grinding
  • CNC milling
  • Induction hardening
  • Chemical and mechanical laboratory services
Design and development of products
Today’s trend in selling the products is to offer the customers products tailored to their requirements and needs. Wide range of Gredelj’s rolling stock products adjusted for the customers stipulates a strong Design and Development Office as well as support by the entire technical and technological structure within the company.
Although Gredelj is known as „mechanical“ company, in recent years it has strongly developed also in the field of rolling stock control.
Today Gredelj’s activites include design of carbody and interior of trams, design of freight cars and passenger coaches, design of carbodies, interior as well as coordination and installation of train systems, design and coordination of new diesel locomotive systems, including locomotive control. With the help of eminent manufacturers of specific rail equipment, we develop and install drive systems, electric and electronic systems, air systems as well as safety and control systems for rolling stock.
If a customer would like the existing railway vehicle to be modernized or reconstructed, TZV Gredelj can offer a very wide range of projects, including mounting of new interiors on the coaches, reconstruction of a passenger coach into a push-and-pull wagon, exchange of drive and auxiliary locomotive systems, installation of microprocessor control, all according to the required standards and norms.
The above challenges require constant care of personnel and their additional education, resulting in some one hundred engineers and technicians in the field of design, development, technique, technology and IT, and their number is still increasing.
Welding
Gredelj currently has approximately eighty certified welders at its disposal, who are qualified for several welding procedures at the same time. Robot welding stations are also included in the welding processes. TZV Gredelj has been authorized and certified for the following: Certificate no.: TÜVSÜD/15085/CL1/361/0/11, Welding works in production and maintenance of rolling stock, in accordance with DIN EN 15085-2, certification level CL-1; Certificate no.: P-SI-11-10-1215-001, Company’s capability for welding works, in accordance with EN ISO 3834-2; Certificate no.: TO-02/10 CT 005/11 :
Production and assembly of pressure vessels and simple pressure vessels, in accordance with HRN EN ISO 3834-2.
CNC machines for cutting
CNC MACHINE FOR LASER CUTTING – TRUMPF TruLaser 3030
Laser power – 4 kW, work-bench – 2000×3000 mm, operational area (x and y direction) – 3000mm x 1500mm, max. cutting thickness for steel plates – 20mm, max. cutting thickness for stainless steel plates – 15mm, max. cutting thickness for Al sheets – 10mm
CNC MACHINE FOR PLASMA CUTTING WITH ROTATING SWIVEL ESAB SUPRAREX SXE – P 4000 AND PLASMA UNIT KJELLBERG HiFocus 280 i Operational area – 2000 x 13000 mm, max. cutting thickness for steel plates – 50 mm, max. cutting thickness for stainless steel plates – 30 mm, max. cutting thickness for Al sheets – 30 mm, max. cutting angle 45
CNC GAS CUTTING MACHINE – UNICUT XD-3000 CNC REA
Operational area – 2000 x 6000 mm, max. cutting thickness – 150mm
CNC punching machine
CNC HYDRAULIC PUNCHING MACHINE – TRUMPF TruPunch 5000
Operational area 3.000×1.500, max. punching thickness 8 mm OBS: the machine is currently equipped with tools for machining of sheets up to 3 mm thickness
CNC hydraulic presses
CNC HYDRAULIC TANDEM PRESS BRAKE LVD PPEH-H 800/81; 400/40, max. length 12.000 mm
Operating force 8000 kN + 4000 kN, max. length of bent steel sheet 12.000 mm (8000 mm+4000 mm), stroke depth min 580 mm, distance between work-bench and y axis min 750 mm, for metal sheet lengths over 7m, max. depth of opening for material (gap) is 805 mm, for metal sheet lengths under 7 m there is no limit
CNC HYDRAULIC PRESS PPEB 400t/6m
Max. of profile bending 10 mm, max. length of bent steel sheet – 6000 mm
CNC HYDRAULIC PRESS BRAKE – LVD Easy-Form 220/30
Operating force – 2200 kN, max. length of bent steel sheet – 3000 mm, stroke depth – min 220 mm, distance between work-bench and y axis – min 450 mm, depth of the opening for material (gap) – 400 mm
Shearing machine for cutting steel
SHEARING MACHINE FOR STEEL SHEET – TRUMPF EHT TruShear 3103
Cutting thickness at 450 N/mm 10mm, max. length of steel sheet 3050mm
SHEARING MACHINE FOR STEEL SHEET TRUMPF EHT TruShear 5103
Cutting thickness at 450 N/mm 10mm, max. length of steel sheet 3050mm
SHEARING MACHINE FOR STEEL SHEET – TRUMPF EHT TruShear 8166
Cutting thickness at 450 N/mm 6 mm, max. length of steel sheet 6050mm
CNC flattening and banding machines
ARKU FLAT MASTER 50165 STRAIGHTENER
Max. metal sheet thickness 10 mm, metal sheet width 1500 mm
CNC BENDING MACHINE WITH ROLLERS – DAVI MCA 3022
Max. length of metal sheet – 3100 mm, max. thickness of metal sheet – 8 mm, min. diameter – 320 mm
CNC machining centers
CNC HORIZONTAL MACHINING CENTER OKUMA – Space center MA 600 HB
CNC machining center with pallet exchange system, pallets dimension 630×630 mm, X, Y, Z course = 1000 x 900 x 1000 mm, work bench indexing angle 1°, work bench carrying capacity 1200 kg, max. dimension of a machined part Ø1000 x 1000 mm
CNC VERTICAL MACHINING CENTER HASS VF 10 7,500RPM
Courses: X–3.100 mm, Y–800 mm, Z–700 mm, revolution: 5000 rpm
CNC turning machines
CNC TURNING MACHINE OKUMA Space Turn LB 3000 Ex
With C axis, max machining diameter 410 mm, max distance between spikes 1.000 mm, three-axis control (3D) X, Z, C, rotary tools, main spindle bore diameter Ø91 material feeding system, max. bar length 1000 mm
CNC TURNING MACHINE – Prvomajska TU 480 Machining diameter 480 mm, distance between spikes 1.000 mm
CNC TURNING MACHINE – Prvomajska TU 360
Machining diameter 360 mm, distance between spikes 800 mm
Lines for blast cleaning, painting, plasticizing and drying
FLOW LINE FOR BLAST CLEANING OF METAL SHEETS AND PROFILES Rosler RRB 22/5
Dimensions of materials which can be machined: metal sheets: max. length x max. width – 6000×2000 mm, steel structure: max. length x max. width – 6000×2000 mm, max. height 500 mm, max. loading of rollers 1200 kg/working meter
PAINTING AND DRYING CABINS
Inner dimensions of cabins (l x w x h) – 32 x 6,5 x 7,2 m, door opening (w x h) – 4 x 5,5 m, inner dimensions of cabins (l x w x h) – 9,5 x 6 x 4 m, door opening (w x h) – 3,5 x 3,5 m
FACILITY FOR MECHANICAL PREPARATION OF SURFACES BY ABRASIVE BLASTING, INCLUDING SUBSEQUENT COLLECTION OF ABRASIVE MATERIAL Inner dimensions of cabins (l x w x h) – 32 x 6,5 x 7,2 m, door opening (w x h) – 4 x 5,5 m
CABINS FOR PREPARATION OF SURFACES (PUTTYING AND GRINDING)
Inner dimensions of cabins (l x w x h) – 32 x 5,8 x 7,2 m, door opening (w x h) – 4 x 5,5 m
LINE FOR DEGREASING, PHOSPHATIZING, SURFACE PREPARATION (PUTTYING AND GRINDING), PAINTING, POWDER COATING AND DRYING OF PARTS
Max dimensions of working part: (l x w x h) 1 x 1 x 2 m
Induction hardening machine
INDUCTION HARDENING MACHINE
Machining of bolts with diameter up to 80 mm, length of 50 mm, hardening depth up to 2 mm
Chemical and mechanical laboratory
The company ensures the complete impartiality and independence of the Laboratory for calibration, mechanical-defectoscopic and chemical testing.
Laboratory staff are not exposed to business, financial, or other pressures that could affect the quality of their work and the results of testing and calibration.