Carbon Steel Vibrating Screen, Doebritz Vibratory Sifter, High-Capacity 1200 x 3000mm / ATEX Certified
Explore Doebritz’s heavy-duty Carbon Steel Vibrating Screen. ATEX certified, minimal dust leakage, and precision-woven mesh for high-capacity screening. Ideal for dry powder & pellet separation. Get a quote.
Product Summary
Engineered for continuous heavy-duty service, the Doebritz Carbon Steel Vibrating Screen delivers high-capacity separation of dry bulk solids, from fine powders (down to 150 microns) to coarse pellets (up to 50mm). Designed with a robust carbon steel housing and a dual-motor vibration drive, it achieves throughput rates up to 25 tons per hour. Certified for ATEX Zone 22 (optional Zone 21) hazardous dust environments, this sifter guarantees minimal fugitive dust emission and maximum uptime for pneumatic conveying, gravity chute, and silo discharge applications.
Why Source Doebritz Vibrating Screen
Industrial procurement managers choose Doebritz for unmatched supply chain advantages and engineering rigor that reduces total cost of ownership (TCO). Here is your competitive edge:
- OEM-Grade Precision & Compliance: Every unit is CNC-fabricated to ISO 9001:2022 standards. We provide full material traceability (EN 10204 3.1) and ATEX EC-Type Examination Certificates as standard for hazardous area deployment.
- Ultra-Low Maintenance & Long Life: Doebritz integrates outboard bearings sealed from the product zone and quick-tension clamp rings. Screen mesh change takes under 10 minutes, reducing downtime by 60% compared to conventional designs.
- Zero Contamination Design: Dust-tested with ≤0.5 mg/m³ emission at the breather port. Optional nitrogen purge connections and sanitary seamless welds for high-purity chemical or food-grade processes.
- Global Heavy Industry Support: Stocking distribution centers in Houston, Rotterdam, and Shanghai ensure 2-week lead time for standard models. Customizable flanges (ANSI/DIN/JIS) and explosion-proof motors (Ex d IIB T4).
Housing & Screen Deck Engineering
The Doebritz Carbon Steel Vibrating Screen features a fully welded, stress-relieved carbon steel housing with a durable epoxy-polyester powder coating (≥200 µm thickness) for corrosion resistance in abrasive bulk solids. Key engineering breakthroughs include:
- Triple-Seal Gasket System: Silicone/PTFE gaskets between each screen deck layer prevent leakage even under 5000 Pa differential pressure.
- High-G Acceleration Rotor (Vibrator): Dual eccentric weights generate adjustable centrifugal force from 8 to 12 Gs, processing sticky fine powders (e.g., hydrated lime, cement) without blinding.
- Quick-Release Tension Rings: Cam-lock design enables tool-free mesh access for rapid inspection or changeovers, critical for multi-product plants.
- Anti-Blocking Mesh Support: Dedicated ball deck and rubber cubes underneath the screen bounce against the mesh, dislodging agglomerated particles and maintaining open area.
Technical Specifications
All performance data below is based on a nominal bulk density of 0.8 t/m³. For custom engineering (higher throughput, sanitary finish, or high-temperature up to 350°C), contact Doebritz engineering.
| Specification | Detail | |
|---|---|---|
| Body Material | Carbon Steel (Q235B / S275JR), Epoxy Coated | |
| Rotor Design / Drive | Dual Eccentric Weights, 8 to 12 G adjustable | |
| Mesh Area | 3.6 m² per deck (1200 x 3000 mm model) | |
| Screen Layers | 1 to 4 decks (standard) | Max. 6 decks (custom) |
| Mesh Size Range | 0.15 mm (100 mesh) to 50 mm (perforated plate) | |
| Max. Throughput | Up to 25 t/h (for fine powder, <500 µm) | |
| Motor Power | 2 x 1.5 kW (standard), 2 x 2.2 kW (heavy-duty) | |
| ATEX Option | II 3 D Ex h IIIC T120°C X (Zone 22) | |
| Gasket Material | Silicone (standard), PTFE, NBR, or FKM (high-temp) | |
| Connection Flanges | ANSI #150, DIN PN10, or JIS 10K (customizable) | |
| Weight (approx.) | 850 kg (single deck, without motor) |
Heavy-Duty Application Scenarios
Pneumatic Conveying Systems (Dilute & Dense Phase)
Protect downstream blowers and filters by installing the Doebritz screen directly above the rotary valve inlet. Removes oversize debris, stringy particles, and agglomerates from plastic pellets, resin, or flour before they damage the conveying line.
Silo Discharging & Gravity Screening
Mount under a silo, bin, or hopper to scalp contaminated lumps from lime, gypsum, or soda ash. The low-profile design (height starting at 450mm) fits tight retrofit spaces while providing full-bore material flow without bottlenecks.
Dust Filter & Collector Return
Install on dust collector discharge outlets to reclaim usable fine powders (e.g., activated carbon, titanium dioxide). Integrated gaskets ensure zero air infiltration, maintaining filter efficiency and reducing product loss.
Frequently Asked Questions
- What is the typical lead time for a Doebritz Carbon Steel Vibrating Screen?
- Standard models (1200x3000mm, single or double deck) are shipped within 2-3 weeks after order confirmation. For custom sizes, ATEX Ex d motors, or 316L stainless steel construction, lead time extends to 4-5 weeks. Urgent expedited service is available for critical plant breakdowns.
- Can you customize the inlet/outlet flange dimensions and orientation?
- Absolutely. Doebritz offers full non-standard customization: any flange standard (ANSI #150, DIN PN10, JIS 10K), square/round connections, and any clocking position (0° to 360°) for the outlet. A detailed dimensional drawing is provided for approval before production.
- Is the Doebritz screen ATEX certified for dust from combustible materials like sugar or aluminum?
- Yes. All Doebritz Carbon Steel Vibrating Screens can be supplied with ATEX Zone 22 certification (internal & external) as standard. For Zone 21 (frequent dust cloud) or Zone 20 (continuous dust), we provide a full Ex h III T4 certified version with anti-sparking mesh, grounding straps, and temperature monitors. Certificates are individually issued per unit.
- What temperature range and high-temperature options are available?
- The standard carbon steel model operates continuously from -20°C to +150°C. For high-temperature processes (e.g., hot sintered ore or calcined coke up to 400°C), Doebritz offers a HT Series with thermal gap clearance, high-temperature silicone gaskets, and external bearing cooling fins.
- How do you handle spare parts and after-sales support internationally?
- Doebritz maintains a global spare parts inventory for all mesh screens, gaskets, vibrator motors, and springs. Orders placed before 2 PM local time ship same day from regional hubs. We also provide remote video commissioning and 24/7 technical support for troubleshooting.
Reviews
There are no reviews yet.