Chorula k. Opola 4 km from motorway A4 Mon–Fri 06:00–20:00
+48 602 716 551

Schwing Parts

Schwing spare parts: Rock Valve wear plates, rubber pistons, cylinders, hydraulic filters. Genuine or OEM alternatives. Parts depot in Chorula near Opole.

Service and spare parts for Schwing concrete pumps

In brief

Schwing-Stetter spare parts for concrete pumps: Rock Valve wear plates (the most frequently replaced consumable), NBR/SBR/polyurethane rubber pistons, concrete cylinders, Rexroth hydraulics, Hydac filters, oils. Genuine parts from the Schwing-Stetter Poland warehouse (standard items 24–48 hours) or certified OEM alternatives for out-of-warranty machines. The PHS Magnum depot in Chorula near Opole holds the most common items in stock. We advise on genuine vs alternative vs reconditioned — ask for a quote.

Schwing-Stetter parts — German availability in Poland

Schwing-Stetter is well-supported in Poland — a dedicated office with a parts warehouse, Polish- and German-speaking technical support, and mechanic training programmes. PHS Magnum, as a partner service centre, coordinates orders and provides technical guidance.

Common wear items at a glance

PartWear indicatorIndicative service lifeAvailability
Rock Valve wear platesRising pressure, valve leaks50,000–80,000 m³Popular models in stock
Rubber pistonsReduced output, slurry in water25,000–50,000 m³NBR standard in stock
Concrete cylinderScoring, wear >2 mmMultiple piston intervals7–14 days (genuine PL)
Hydraulic filtersService intervalPer operating hoursIn stock

Service life figures are indicative and depend on aggregate abrasiveness, chemical admixtures, and working pressure — aggressive concrete mixes will accelerate wear.

Schwing parts categories

Rock Valve wear plates

The most frequently replaced item in Schwing pumps — a consumable by design.

Replacement indicators:

  • Rising hydraulic pressure at constant pumping output (Rock Valve opening resistance increasing)
  • Actual output falling below nominal capacity
  • Material leaking past the valve despite correct tightening
  • Wear measurement of the plates (calliper or micrometer)

A full wear-plate set includes:

  • 4–6 plates per Rock Valve
  • Each with a material certificate (hardness HRC 60+)
  • Mounting bolts included (M10–M14 depending on model)

Replacement time: 2–4 working hours, straightforward mechanical operation. Can be carried out on-site as part of a mobile service call.

Rubber pistons

Materials: NBR (standard), SBR (winter), polyurethane (extended service life).

Bore sizes:

  • Ø 200 mm — S 28 X
  • Ø 230 mm — S 36 X / S 38 SX (most common)
  • Ø 260 mm — S 43 SX / S 47 SX
  • Ø 280 mm — S 51 SX / S 56 SX

PHS Magnum depot: standard NBR sizes held in stock.

Concrete cylinders

Hardened steel liners. Replacement or reconditioning depending on wear:

  • Reconditioning (honing + oversize pistons): 0.5–2 mm wear
  • Replacement: >2 mm wear or deep scoring

Genuine Schwing cylinders — delivery from the Polish warehouse: 7–14 working days.

Hydraulics

Schwing-Stetter uses Rexroth hydraulics (German standard throughout).

  • Main hydraulic pump — Rexroth A4VG or A11VG depending on model
  • Control valves — Rexroth with CAN bus
  • Boom cylinders — Rexroth or Brueninghaus
  • Hydraulic filters — Hydac (most common)
  • Hydraulic oil — Mobil DTE Excel 46, Shell Tellus S2 V46, Rexroth-approved equivalents

Rexroth parts availability: excellent (established distribution network in Poland).

Boom repairs

Schwing steel booms are repairable by welding. Relevant specifications:

  • Welding consumable to Schwing specification (ER70S-6 or equivalent)
  • Schwing WPS (Welding Procedure Specification)
  • Post-repair NDT mandatory (MT or PT)

PHS Magnum holds ISO 9606-1 certified welders qualified for Schwing boom repairs.

Cooling water pumps

Schwing-Stetter water pumps are sourced from Bauer (leading German manufacturer) or Wacker. Complete repair kits are available.

“Schwing Service Pack” maintenance bundle

For fleet operators we offer a complete maintenance kit:

ItemIncluded
Rubber pistons (full set, 2 pcs.)✓
Rock Valve wear plates (full set)✓
Hydac hydraulic filter✓
Fuel filter✓
Air filter✓
Engine oil filter✓
Hydraulic oil (model-specific grade)✓
Engine oil✓
Key seals (water pump, hydraulics)✓
Greases and specialist lubricants✓

Bundle pricing is 20–30% below ordering items individually.

DACH-friendly service

  • Communication: PL / DE / EN — a German-speaking account manager for DACH customers
  • Documentation: Material certificates to German standards (EN 10204 3.1)
  • Logistics: GLS, DHL, DPD throughout the EU — 2–4 days
  • Invoicing: EU VAT invoice in PLN or EUR
  • EUR account available for direct transfers

Contact

Technical advice and Schwing-Stetter parts orders: we will advise whether replacement, reconditioning, or an OEM alternative is the right solution for your situation. When ordering, please quote the model (e.g. S 36 X) and the serial number from the type plate — we will despatch the correct set straight away. Ask for a quote and availability.

Related: Schwing pump service · Concrete pump repair · TDT inspection for concrete pumps · Putzmeister spare parts · Cifa spare parts · Schwing pump hydraulics service · When to replace concrete pump pistons

Frequently Asked Questions

Yes. Schwing-Stetter Poland operates a central office with a parts warehouse. Standard items (pistons, filters, oils, Rock Valve wear plates) are available off the shelf or within 24–48 hours. Larger hydraulic assemblies take 5–10 working days. Specialist items (boom sections) require 4–12 weeks. PHS Magnum coordinates orders directly with the Polish warehouse.

Rock Valve wear plates are hardened, replaceable inserts fitted inside the Schwing Rock Valve. They are in direct contact with the concrete flow and wear through abrasion. Designed as a consumable, they are intended to be replaced rather than reconditioned. Typical service life is 50,000–80,000 m³ of pumped concrete. A full set covers one Rock Valve.

Yes. The PHS Magnum depot holds complete sets for the most popular Schwing models (S 36 X – S 43 SX). Non-standard sizes (smaller S 28 X, larger S 51 SX / S 56 SX) are available within 24–48 hours from the Schwing-Stetter Poland warehouse. Material: high-carbon hardened steel, hardness >HRC 60.

Broadly, yes — with caveats. Certified OEM alternatives from European manufacturers match the hardness and geometry of the originals. The downsides: no Schwing-Stetter warranty (relevant for pumps still under factory warranty), and service life can be marginally shorter (10–20%). We use alternatives for older machines out of warranty and for fleet customers running their own planned-maintenance programmes.

As a rule of thumb, every 25,000–50,000 m³ of concrete. Schwing pistons tend to last longer than those in competitor machines thanks to the smoother switching action of the Rock Valve, which reduces pulsation stress. Early replacement may be needed when pumping highly abrasive aggregate or concrete with aggressive chemical admixtures.

Yes. Schwing continues producing spare parts for most models for 20 or more years. For very old models (e.g. SP-Series from the 1990s), certain items may require custom fabrication or an OEM substitute. PHS Magnum can advise on the best approach: genuine part, OEM alternative, or reconditioning.

The Schwing Service Pack is a bundled maintenance kit for fleet operators: rubber pistons (full set), Rock Valve wear plates, hydraulic / fuel / air / engine oil filters, oils (hydraulic ISO VG 46 + engine), and water pump seals. Bundle pricing is 20–30% below ordering items individually — ideal for 500/1,000 operating-hour scheduled services.

The symptoms differ. Worn Rock Valve wear plates cause rising hydraulic pressure when the valve switches, audible knocking, and material leaking past the valve even when it is properly tightened. Worn rubber pistons show up as reduced output, cement slurry entering the water chamber, and cloudy flushing water. A service diagnostic is the most reliable method — contact us before ordering parts and we will identify the correct component.

Yes — it speeds things up and eliminates errors. Please provide the model designation (e.g. S 36 X, S 43 SX) and the serial number from the machine's type plate. For Rock Valve wear plates and pistons in particular, selection depends on cylinder bore and valve version, so the exact designation lets us despatch the correct set immediately rather than going back and forth.

NBR is the universal standard suitable for typical operating conditions. SBR is the preferred choice for cold-weather operation (winter pumping). Polyurethane offers the longest service life and best abrasion resistance but at a higher unit cost — it pays off on high-intensity pumping with abrasive aggregate. The right choice depends on your fleet's operational profile.

Contact & Hours

ul. Kościelna 9, 47-316 Chorula

Mon–Fri 06:00–20:00

Sat 07:00–15:00

+48 602 716 551 Contact Form
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ISO 9001:2015

4 km from motorway A4

180 km from German border

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Pogotowie Techniczne TIR & SILO +48 602 716 551