Shot Blasters – Dust-Free Surface Preparation for Concrete & Steel (UK Supplier)

PWM Sales supplies Contec mobile shot blasters for dust-free surface preparation on concrete and steel. From compact 110V access units to high-output 400V industrial machines, we specify complete HSE-compliant systems including extractor matching, OEM spares, and UK technical support.

If you’re preparing concrete before resin/epoxy systems or targeting steel cleanliness grades such as SA 2½, we’ll recommend the correct machine, media, airflow and hose configuration for your project.

For technical support, extractor matching or fast delivery:
01405 862688 • sales@pwm-sales.co.uk

Contec Shot Blaster Range (Model Selector)

Verified data – PWM is an authorised UK distributor.

Model	Width	Concrete m²/h	Steel m²/h	Min Airflow	Supply	Extractor
Elephant	200 mm	20–40	Limmited	540 m³/h	110/230 V or 400 V 3~	TV150 / iClean
MODUL 200 XL	225–455 mm	50–120	5–10*	1620 m³/h	400 V 3~	Tornado / S3 iClean
MODUL 300	300 mm	100–180	15–30	1620 m³/h	400 V 3~	Tornado/R2D2
MODUL 350	350 mm (715 EU)	150–300	20–40	≥ 2280 m³/h	400 V 32–63 A	R2D2 / R2D2-7
ELGATOR	560 mm	300–500	40–70	3720 m³/h	400 V 63 A	R2D2-7

*MODUL 200 XL steel capability limited, not for heavy removal.

What Is a Shot Blaster?

A shot blaster (also called a shot blasting machine, floor shot blaster, or surface preparation shot blaster) propels steel shot onto the surface to:

• Remove coatings, paint, epoxy and laitance
• Create a Concrete Surface Profile (CSP) —
  Learn more: https://www.pwm-sales.co.uk/what-is-a-concrete-surface-profile-csp-and-why-it-matters/
• Produce steel cleanliness grades such as SA 2½
• Prepare concrete before resin, epoxy or PU systems
• Prepare steel decks, ramps, walkways and industrial floors

 

Used across:

• Concrete floors
• Industrial steel surfaces
• Warehouses & distribution centres
• Car parks
• Bridges, shipyards and marine steel
• Roads, airport markings & line removal

All Contec machines operate dust-free when paired with a correctly matched H-Class extractor.

 

Why Choose a Mobile Shot Blaster?

Modern mobile shot blasters and portable shot blasters offer:

• Dust-free performance with the correct H-Class extractor
• Fast production rates
  (See blog → https://www.pwm-sales.co.uk/surface-coverage-rates-in-industrial-shot-blasting/)
• Lower wear cost per m² versus grinding
• A consistent, repeatable CSP profile
• Depth control ideal for epoxy & PU systems
• Concrete and steel capability (model dependent)

 

Shot Blasters for Sale (UK)

PWM Sales supplies shot blasters for sale with:

• OEM spare parts
• UK service & technical support
• Export logistics
• Leasing and finance

Whether you need a portable shot blaster, a compact access unit, or a heavy-duty industrial shot blasting machine, PWM will specify the correct setup.

For material-specific guidance:
Shot Blasting Kit Selection for Steel, Concrete & Marine →
https://www.pwm-sales.co.uk/shot-blasting-kit-selection-for-steel-concrete-marine/

 

New vs Used Shot Blasters — Why New Contec Machines Win

Professionals comparing new vs used shot blasting equipment often miss the real-world costs.

Why New Is Better:

1. OEM Warranty & Support

• New units include full OEM parts support + 12-Month Unlimited-Hours Warranty
• Used units offer 0–3 months coverage and unknown load hours

2. Hidden Wear Costs (£600–£2,000+)
   
   Used machines typically require immediate replacement of:

• Blast wheel blades
• Liners / wear plates
• Control cage & impeller
• Seals, bearings
• Electrical components

These hidden repairs eliminate most “savings.”

3. Electrical & Performance Reliability
   Used machines often show:

• Breaker tripping
• Incorrect power conversions
• Shaft vibration
• Uneven blast pattern

4. Correct Extractor Matching (HSE Requirement)

PWM ensures correct:

• Airflow
• Hose diameter
• H-Class filtration

 

5. High Resale Value
   Contec machines often retain 70%+ resale value after major projects.

 

 

Compact & Portable Shot Blasters (Small / Access Work)

Ideal for:

• Confined spaces
• Mezzanines
• Access floors
• Tight commercial environments

See detailed guide:
Confined Space Shot Blasting Guide →
https://www.pwm-sales.co.uk/confined-space-shot-blasting-equipment-selection-and-assembly-guide/

 

Concrete Shot Blasters vs Steel Shot Blasters

Concrete Work

Use S390/S460 steel shot for:

• Coating removal
• Laitance removal
• Keying for resins
• CSP profiling
  https://www.pwm-sales.co.uk/what-is-a-concrete-surface-profile-csp-and-why-it-matters/

Add up to 20% angled grit for epoxy removal (never exceed 30%).

 

Steel Work

Suitable machines: MODUL 300, MODUL 350, ELGATOR

For SA 2½ steel cleaning:

• Use smaller shot (e.g., S390) for clean, accurate cutting
• Avoid large shot (S460+) — it can push contaminants into steel
• Maintain full airflow
• Inspect the blast wheel every 30–50 hours

Deep-dive guide:
Steel Surface Preparation with MODUL 350 →
https://www.pwm-sales.co.uk/a-guide-to-steel-surface-preparation-with-modul-350-shot-blaster/

 

Industrial Shot Blasters (High-Output Work)

Ideal for:

• Warehouses
• Factories
• Steel decks
• Large concrete projects

Performance optimisation explained:
Industrial Coverage Rates Guide →
https://www.pwm-sales.co.uk/surface-coverage-rates-in-industrial-shot-blasting/

 

Dust Extraction (HSE-Compliant)

To remain HSE-compliant:

• Use H-Class industrial extraction
• Match extractor airflow to machine
• Use correct hose diameters (70–150 mm)
• Maintain filters & seals

 

Relevant hubs:

Dust Control Hub →
Industrial Vacuums →

 

Maintenance & Troubleshooting Support

PWM provides full support for Contec shot blasters.

 

Blast Wheel Inspection (Every 30–50 Hours)

Check:

• Blades
• Liners
• Control cage
• Bearings
• Seals

Replace blades before ~5 mm thickness.

 

Dropping Shot Behind the Machine

Usually caused by:

• Adhesive residues
• Uneven concrete
• Surface variations

Solution: pre-grind with PCD or 16/25 grit diamonds.

 

Breaker Tripping

Often due to:

• Undersized power supply
• Extractor + machine on same circuit
• Blocked filters

 

Poor Pattern / Low Productivity

Common causes:

• Incorrect media size
• Worn wear components
• Shot recovery blockages

For pattern striping & tramlines:
Preventing Tramlines in Shot Blasting →
https://www.pwm-sales.co.uk/preventing-tramlines-in-shot-blasting/

 

FAQs

Do I need dust extraction?
Yes — H-Class extractor is mandatory.

Difference between a grinder & shot blaster?
Grinders cut; shot blasters impact-profile to a CSP.

Which models suit steel?
MODUL 300 / 350 / ELGATOR.

Blast wheel inspection frequency?
Every 30–50 hours.

ROI?
Typically payback occurs within 2–3 projects.

 

Shop All Shot Blasters

Elephant →
MODUL 200 XL →
MODUL 300 →
MODUL 350 →
ELGATOR →
Blast Wheel Tune-Up Kit →

 

 

Shot Blaster Information Guides

• What is a CSP and Why It Matters
• Surface Coverage Rates in Industrial Shot Blasting
• Shot Blasting Kit Selection for Steel, Concrete & Marine
• Confined Space Shot Blasting Guide
• Steel Surface Preparation with MODUL 350
• Preventing Tramlines in Shot Blasting
• Dust Control Hub
• Industrial Vacuums