Atlas Copco DZS/DZM Oil-Free Claw Vacuum Pumps - Models DZS 030 to DZS 1220 - Dry-Running Industrial Vacuum Solutions
Atlas Copco DZS/DZM claw vacuum pumps (also known as claw pumps or Schnabelpumpen) are dry-running, oil-free vacuum pumps featuring figure-eight shaped rotors that operate without contact. With pumping speeds ranging from 30 to 1220 m³/h and ultimate vacuum capability down to 50 mbar, they provide a highly cost-effective alternative to premium brands for chemical, pharmaceutical, food processing, and general industrial applications.
The revolutionary contact-free claw rotor design eliminates the need for operating fluids within the compression chamber, ensuring 100% oil-free vacuum while delivering exceptional reliability, minimal maintenance requirements, and outstanding energy efficiency. This makes DZS/DZM pumps the ideal choice for budget-conscious operations requiring contamination-free vacuum performance.
Technical Performance Specifications:
- Pumping Speed Range: 30 to 1220 m³/h at 50 Hz
- Ultimate Vacuum: 50 to 100 mbar (37.5 to 75 Torr) depending on model
- Motor Power: 0.75 to 55 kW
- Operating Speed: 1450 to 2900 RPM
- Construction: Compact to heavy industrial, robust design
- Cooling System: Air-cooled (standard), water-cooling optional for larger models
- Operating Temperature: +5°C to +40°C ambient
Complete DZS/DZM Model Range:
All available DZS models: DZS 030, DZS 050, DZS 075, DZS 120, DZS 200, DZS 350, DZS 550, DZS 800, DZS 1220
DZM Series: Optimized models with enhanced features for demanding applications
1. DZS Series - Standard Claw Vacuum Pumps:
Small Applications (30-120 m³/h):
- DZS 030: 30 m³/h capacity, 0.75-1.5 kW, ideal for pilot plants and laboratory scale-up
- DZS 050: 50 m³/h capacity, 1.5-2.2 kW, compact research and development applications
- DZS 075: 75 m³/h capacity, 2.2-3.0 kW, small batch processing and testing
- DZS 120: 120 m³/h capacity, 3.0-4.0 kW, small production lines and processes
Medium Applications (200-550 m³/h):
- DZS 200: 200 m³/h capacity, 5.5-7.5 kW, medium production facilities and distillation
- DZS 350: 350 m³/h capacity, 11-15 kW, chemical production and pharmaceutical manufacturing
- DZS 550: 550 m³/h capacity, 18.5-22 kW, food processing and drying applications
Large Industrial Plants (800-1220 m³/h):
- DZS 800: 800 m³/h capacity, 30-37 kW, large process plants and central vacuum systems
- DZS 1220: 1220 m³/h capacity, 45-55 kW, maximum capacity for petrochemical and large-scale industrial drying
2. DZM Series - Optimized Claw Vacuum Pumps:
- Enhanced Models: Advanced features for improved performance and reliability
- Optimized For: Higher reliability, better efficiency, extended service intervals
- Special Features: Improved materials, advanced sealing systems, enhanced rotor coatings
- Applications: Demanding industrial processes requiring maximum uptime
Claw Pump Operating Principle:
DZS/DZM claw pumps operate with two figure-eight shaped (claw-shaped) rotors rotating in opposite directions without making contact within the pump housing. The rotors are synchronized by an external gear drive located outside the compression chamber. Gas is transported but not compressed within the pump chamber (positive displacement principle). Since there is no contact between the rotors or between rotors and housing, the pump operates completely oil-free and requires minimal maintenance.
Key Technical Advantages:
- ✓ 100% Oil-Free: Zero process contamination risk
- ✓ Dry-Running: No operating fluids in compression chamber
- ✓ Low Maintenance: Extended service intervals, minimal operating costs
- ✓ Contact-Free Operation: Minimal wear, extended service life
- ✓ Exceptional Price-Performance: 40-60% lower cost than premium brands
- ✓ High Pumping Speed: Efficient in medium vacuum range
- ✓ Robust Construction: Designed for continuous 24/7 industrial operation
- ✓ Energy Efficient: Optimized rotor geometry for excellent efficiency
- ✓ Compact Design: Space-saving installation footprint
- ✓ Quiet Operation: Low noise emissions with optional acoustic dampening
- ✓ Environmentally Friendly: No oil consumption, zero emissions
- ✓ Versatile Application: Suitable for diverse industrial vacuum requirements
Primary Industrial Applications:
Chemical Industry: Distillation columns, vacuum drying processes, chemical reactors, polymerization plants (oil-free critical), crystallization systems, solvent handling, evaporation, degassing operations
Pharmaceutical Manufacturing: Active pharmaceutical ingredient (API) production, vacuum drying chambers, granulation processes, tablet coating systems, sterile production environments, lyophilization backing pumps
Food & Beverage Processing: Vacuum drying of food products, juice concentration, vacuum packaging lines, ingredient conveying, freeze concentration, product handling where contamination must be eliminated
Plastics Industry: Plastic extrusion degassing, polymer granule conveying and drying, thermoforming operations, injection molding vacuum systems
Paper & Pulp Industry: Vacuum dewatering sections, paper machine vacuum rolls, pulp washing, degassing systems
Environmental Technology: Exhaust gas extraction, biogas handling applications, air pollution control systems, soil vapor extraction
Textile Processing: Fiber conveying systems, yarn winding operations, fabric handling equipment
Wood Processing: Chip and sawdust extraction, vacuum clamping tables for CNC routers, timber drying systems
Printing Industry: Paper handling systems, sheet feeders, web press vacuum transfer, printing plate hold-down
Pneumatic Conveying: Granule, powder, and bulk material transport systems, central vacuum material handling
Medical Technology: Medical suction systems, laboratory vacuum, oil-free requirement compliance
General Mechanical Engineering: Diverse oil-free vacuum applications across multiple industries
DZS/DZM vs. Premium Brands Comparison:
| Feature | DZS/DZM Claw Pumps | Premium Brands (Rietschle/Becker) |
|---|---|---|
| Purchase Price | ✓✓ Very economical (40-60% less) | ○ Significantly higher |
| Ultimate Vacuum | ✓ 50-100 mbar (sufficient) | ✓ 50-150 mbar (comparable) |
| Oil-Free Operation | ✓ 100% oil-free | ✓ 100% oil-free |
| Technology | ✓ Proven, standardized | ✓✓ Premium, optimized |
| Quality | ✓ Good for standard applications | ✓✓ Premium grade |
| Spare Parts | ✓ Available, affordable | ✓ Available, more expensive |
| Service Life | ✓ Good with regular maintenance | ✓✓ Excellent |
| ROI | ✓✓ Very fast payback | ○ Slower |
| Best For | Budget-conscious oil-free applications | Critical processes, high-precision requirements |
Claw Pump vs. Other Oil-Free Technologies:
| Criterion | Claw Pump (DZS/DZM) | Oil-Free Vane Pump | Dry Screw Pump |
|---|---|---|---|
| Ultimate Vacuum | ✓ 50-100 mbar | ✓ 100-150 mbar | ✓✓ 0.01-0.1 mbar |
| Pumping Speed | ✓✓ High (30-1220 m³/h) | ○ Low (3-150 m³/h) | ✓ Medium-High (80-650 m³/h) |
| Maintenance | ✓ Low maintenance (gear oil only) | ○ Vane replacement required | ✓✓ Very low maintenance |
| Price | ✓ Medium cost | ✓✓ Economical | ○ Expensive |
| Energy Efficiency | ✓ Good | ○ Moderate | ✓✓ Excellent |
| Ideal For | Medium vacuum, high throughput | Low vacuum, budget applications | High vacuum, premium processes |
Economic Analysis Example:
Cost Comparison for 200 m³/h Drying Plant (5-Year Total Cost of Ownership):
| Cost Category | DZS 200 | Premium Brand | Savings |
|---|---|---|---|
| Initial Purchase | € 4,500 | € 10,000 | € 5,500 |
| Maintenance (5 years) | € 1,000 | € 1,000 | € 0 |
| Gear Oil (5 years) | € 300 | € 500 | € 200 |
| Total 5-Year TCO | € 5,800 | € 11,500 | € 5,700 |
Nearly 50% savings with comparable oil-free performance!
Operating Parameters & Maintenance:
- Gear Oil: High-quality gear oils (external gear drive only, not in compression chamber)
- Gear Oil Change Interval: Approximately 8,000-16,000 operating hours
- Ambient Temperature: +5°C to +40°C operating range
- Cooling: Air-cooled (standard), water-cooling optional for larger models
- Noise Level: Approximately 70-85 dB(A) depending on model
- Maintenance: Minimal – periodic gear oil changes only
- Wear Parts: Bearings, seals (long service life)
- Rotor Clearances: Precision-machined for optimal performance
When Are DZS/DZM Claw Pumps the Right Choice?
DZS/DZM claw pumps are ideal when the following criteria apply:
- ✓ Oil-free operation required: 100% contamination-free vacuum essential
- ✓ Medium vacuum sufficient: 50-100 mbar ultimate vacuum meets requirements
- ✓ High throughput: 30-1220 m³/h pumping capacity needed
- ✓ Budget constraints: Cost-effective oil-free solution essential
- ✓ Low maintenance desired: Minimal operating costs important
- ✓ Chemical/Pharma/Food applications: Typical deployment sectors
- ✓ Continuous operation: 24/7 production environment
- ✓ Fast availability: Short delivery times from stock important
Available Configurations & Options:
- Standard Version: 400V, 50 Hz, air-cooled configuration
- Water-Cooled: Optional for larger models requiring enhanced cooling
- With Silencers: Acoustic dampening for noise-sensitive environments
- Variable Frequency Drive (VFD): Variable speed control for energy optimization
- ATEX Configuration: Explosion-proof version for hazardous areas (on request)
- Custom Connections: Flanges and ports according to customer specifications
- Mobile Frame: Wheeled chassis for portable applications (optional)
- Special Coatings: Corrosion-resistant treatments for aggressive environments
Selection Guide - Key Questions:
- What ultimate vacuum is required? (mbar absolute pressure – if
- What volume flow rate is needed? (m³/h at which pressure)
- Is oil-free operation critical? (Pharma, food → yes)
- What gases/vapors will be pumped? (chemicals, solvents, process gases)
- Operating mode: Continuous or batch process?
- Budget priority: How important is initial cost vs. operating cost?
- Space constraints: Limited installation area?
- Noise requirements: Sound level restrictions in place?
Comprehensive Service Portfolio for DZS/DZM Claw Pumps:
- Sales: New DZS/DZM pumps from stock with immediate availability
- Consultation & Sizing: Technical dimensioning and process analysis for your applications
- Fast Delivery: Short lead times through warehouse inventory
- Spare Parts: Rotors, bearings, seals, gears available at competitive prices
- Gear Oils: Quality lubricants optimized for claw pump gear drives
- Accessories: Silencers, intake filters, frequency inverters, pressure switches
- Preventive Maintenance: Scheduled inspections according to maintenance plan
- Repair & Overhaul: Professional refurbishment and component replacement
- On-Site Service: Installation, commissioning, troubleshooting at customer facilities
- Exchange Program: Rental units available during repair periods (subject to availability)
- System Integration: Complete oil-free vacuum systems with controls
- Technical Support: Expert assistance for optimization and problem-solving
- Training: Operator training for safe and efficient pump operation
Why Choose DZS/DZM Claw Vacuum Pumps?
- Highly Economical: 40-60% lower cost than premium brands
- 100% Oil-Free: Zero contamination for sensitive processes
- Low Maintenance: Extended service intervals, minimal operating costs
- High Performance: Pumping speeds up to 1220 m³/h
- Robust: Designed for continuous 24/7 industrial operation
- Available: Short delivery times from stock
- Complete Service: Full support from experienced team
- Fast ROI: Very rapid payback period
Perfect Applications:
- ✓ Chemical industry with distillation and drying operations
- ✓ Pharmaceutical production (oil-free requirement)
- ✓ Food processing industry (contamination eliminated)
- ✓ Plastics and polymer production
- ✓ Paper and textile manufacturing
- ✓ Pneumatic material conveying systems
- ✓ Budget-conscious operations requiring oil-free vacuum
- ✓ Replacement for failed premium pumps (economical alternative)
Technical Support & Expertise:
Our experienced vacuum technology specialists provide comprehensive support including application engineering and pump selection guidance, comparative analysis vs. premium brands with TCO calculations, energy efficiency assessments and optimization recommendations, system design and integration services, performance troubleshooting and diagnostics, retrofit engineering for existing installations, complete technical documentation in multiple languages, and ongoing consultation throughout pump lifecycle.
Contact us for a no-obligation quotation! We are happy to advise you on selecting the optimal DZS/DZM claw pump for your oil-free vacuum application – including technical sizing, process analysis, and economic comparison. Save up to 60% compared to premium brands with 100% oil-free operation!