Polish company. Polish capital. Built in Koniecpol.

What “made in Poland” means here

• Design, fiber-laser cutting, CNC machining, welding and paint — in our own shop.
• Buckets carry the MS cast mark and the MEGA STRONG name.
• 18G2A / S355 body with 3.1 certificate. HARDOX 500 / 550 edges and liners.
• 12-month weld warranty and spare parts from Koniecpol.
• Pin-on, Miller, Verachtert CW, Lehnhoff, S, Morin, KLAC or Martin hitch — built for the machine.

Plant in Koniecpol

The partners of PPHU ASTO s.c. are Katarzyna Kusa and Tomasz Kusa. MEGA STRONG is the plant brand. Cutting, welding, painting and fit-up are done on site. MS teeth are made to our specification in a partner mill — not welded in Koniecpol.

Materials and inspection

CE marking

Machine shop

Cutting, bending, machining, welding, hitch fit-up, paint and inspection are done in Koniecpol. Most parts come off CNC machines so the first bucket in a batch matches the last.

• Plate is cut on a high-power fiber laser.
• Turning and milling on CNC centres, including Doosan Puma — pins, bushes and hitch seats.
• Short runs and corrections on conventional mills and lathes next to the CNC cells.
• Bending on a CNC press brake. Angle and bend line from the program.

Certified steel. Qualified welds. Checked before dispatch.

Only certified stock goes into a bucket. The body is 18G2A (S355 equivalent) with an EN 10204 3.1 certificate. Wear zones are 500 and 550 HB plate — HARDOX 500, HARDOX 550 or equivalent first-grade plate. Pins and bushes are C45 and 40HM / MH40. Cutting edges come with a mill-rolled edge, single- or double-bevelled to the job.

What the structure is made of

• 18G2A / S355 with 3.1 cert — shell and side plates.
• HARDOX 500 and 550 (500–550 HB) — edges, liners, wear zones.
• C45 and 40HM / MH40 — pins, bushes, pin-type parts.
• Mill-rolled cutting edge; 1- or 2-side bevel to suit the ground.

Welding and inspection

• Welders hold a current EN ISO 9606-1 qualification.
• Shop processes: 135 MAG (solid wire) and 136 MAG / FCAW (flux-cored) — the usual pair on a bucket body. 111 MMA where a stick electrode is the practical access. TIG (141) is not used on bucket bodies.
• Fillet and butt welds on plate (FW / BW) in the positions the attachment requires.
• Checked after welding, after paint, at assembly and again before the truck leaves.

Plate is bought from certified European mills and stockholders. No 3.1 certificate, no purchase. HARDOX is an SSAB trademark — on the bucket it names the wear plate grade, not a partnership beyond the steel supply.

Product conformity

Documentation and CE marking

CE marking

MEGA STRONG attachments meet the current requirements applied to construction-machine work tools. Every bucket, coupler and plate leaves the shop with the documentation that authorises CE marking. The CE mark is on the product.

Steel 3.1 certificates, weld and paint inspection and the CE file travel with the delivery. We do not use TIG (141) on bucket bodies — shop processes are 135 MAG, 136 MAG / FCAW and 111 MMA.

Production photos

Photos from the MEGA STRONG plant. Click to enlarge.