Graco PR70 Series Benchtop Meter, Mix and Dispense System
Description
The PR70™ Benchtop Meter, Mix and Dispense System is a highly precise and reliable system designed to handle a wide range of low to high-viscosity two-component materials. Utilizing positive displacement technology, it ensures accurate mix ratios and consistent shot volumes every time. With various configurations available—including fixed ratio, variable ratio, and models specifically for abrasive materials—the PR70 is an ideal solution for electronic potting, medical device assembly, and various small-shot industrial applications. Its compact benchtop design saves space while providing intuitive controls that enhance productivity and reduce material waste.
Features
- Superior Metering Precision : Utilizes positive displacement cylinder technology to ensure dispensing accuracy within ±1%, significantly reducing material scrap and costly rework.
- Versatile Ratio Options : Available in multiple models—including PR70 (fixed ratio), PR70v (variable ratio), and PR70e (economy)—to perfectly align with your specific process requirements and budget.
- Long-lasting Pump Design : Engineered with robust stainless steel construction to handle a wide variety of materials while minimizing seal wear and extending the overall equipment service life.
- Intuitive Control System : Features a user-friendly display interface that simplifies setup and operation, allowing for easy adjustment of dispensing parameters and monitoring.
- Modular Feed Options : Offers modular flexibility with various reservoir sizes (ranging from 1.5L to 15L) and optional features such as agitation and degassing to accommodate diverse material characteristics.
- Compact Footprint : The streamlined benchtop design is ideal for small manual workstations and allows for seamless integration into fully automated robotic production lines.
Specifications
| Model | PR70 Series | |
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Metering Pump Effective Area |
80 to 960 mm2 (0.124 to 1.49 in.2) per side |
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Small Air Cylinder Effective Area |
4560 mm2 (7.07 in.2) |
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Large Air Cylinder Effective Area |
10260 mm2 (15.9 in.2) |
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Maximum Stroke Length |
38.1 mm (1.50 in.) |
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Minimum Stroke Length |
5.8 mm (0.23 in.) |
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Volume per Cycle |
2 to 70 cc (0.12 to 4.3 in.3) |
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Pump Cycles per 1 L (0.26 gal) |
14.3 to 500 cycles (varies by piston size) |
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Ratios (Fixed) |
1:1 to 12:1 (depending upon cylinders selected) |
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Ratios (Variable) |
1:1 to 24:1 (depending on cylinders selected) |
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Maximum Fluid Working Pressure |
3000 psi (207 bar, 20.7 MPa) |
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Maximum Air Input Pressure |
100 psi (7 bar, 0.7 MPa) |
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Maximum Cycle Rate |
30 cpm |
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Maximum Operating Temperature |
70°C (160°F) nylon pistons; 50°C (120°F) UHMWPE pistons or PE tanks |
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Air Inlet Size |
1/4 NPT(f) |
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Pump Fluid Outlet Size |
-03, -04, -06, -08 or -12 JIC fittings for 3/16 in (4.8 mm), 1/4 in (6.4 mm), 3/8 in (9.5 mm), 1/2 in (12.7 mm), 3/4 in (19.1 mm) hoses |
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Wetted Parts |
303/304, 17-4 PH, hard chrome, Chromex™, carbide, chemical resistant O-rings, PTFE, nylon, UHMWPE |
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Weight – PR70 |
55 kg (120 lb) typical with two 7.5 l tanks; 150 kg (330 lb) typical with two 60 l tanks |
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Weight – PR70v |
73 kg (160 lb) typical with two 7.5 l tanks; 168 kg (370 lb) typical with two 60 l tanks |
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Weight – PR70e |
46 kg (100 lb) typical without tanks |
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Compressed Air |
< 10 scfm typical (varies with cycle time) |
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Electrical Power |
100-240V 50/60Hz 1 phase for machine – 80 watts 208-240V 50/60Hz 1 phase for heat – 10 kW max 120 or 240V 50/60Hz 1 phase for on-board agitators |
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