Microinjectors

WPI's new generation pressure microinjectors (the PV850, µPUMP, and MICRO-ePUMP). Our three new injectors facilitate any type of microinjecion that involves glass micropipettes, conveniently paired with a compensation pressure function to prevent capillary action. *Long-taper micropipettes should be used for optimal functionality.
Now featuring: Narishige & TransferMan-compatible capillary holder included with each unit! Be sure to let your AE know what handle you need (Narishige, FemtoJet, or our standard 7mm width handle)
To learn more about our warranty options, click here.
New Generation of Pressure Injectors
- MICRO-ePUMP - Microinjector with Integrated Cell Penetrator and Internal Pressure Source
- μPUMP - Microinjector with Internal Pressure Source
- PV850 - Microinjector for Use with External Pressure Source*
- All pneumatic microinjectors should be used with long-tapered micropipettes for optimal functionality. Check our our pre-pulled long-taper tips here
*If you currently have either the µPUMP or PV850 and are interested in adding electroporation fuctionality to your system, check-out our MICRO-ePORE™.
| Type | MICRO-ePUMP | uPUMP | PV850 |
| Regulated compensation and injection pressure | |||
| Pressure output: 0.01–87 PSI | |||
| Low volume tubing assembly | |||
| Inject using foot switch (included) | |||
| Inject using a TTL pulse from external computer or pulse generator (Cable to connect to pulse generator included) | |||
| Inject manually using touch screen interface | |||
| Integrated pressure source | |||
| 2-Stage foot switch to activate voltage for injection and MICRO-ePORETM | |||
Integrated MICRO-ePORETM Technology
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Benefits 
- Intuitive user-interface, with touch screen and tailored knob adjustments
- Small footprint for optimized bench space
- High precision for reproducible injections – picoliter to microliter scale
- All inclusive system (tubing, footswitch, capillary holder with various gasket fittings)
- Plug-and-play system: little-to-no preparation required to begin working as quickly as possible
- Compensation pressure feature omits capillary action for complete control over your sample
- Option to use a range of micromanipulators with both with our standard 6.35mm pipette holder, and the slimmer 4mm holders, commonly paired with hydraulic or manual manipulators.
- Premium Warranty Available
Applications
- Microinjection of diverse compounds and biomolecules (e.g. cell transfection)
- Nanobead production/calibration for emulsion-based studies in drug development
All Your Microinjection Accessories
Let WPI be your one-stop shop for all your microinjection needs. We offer any accessory you may need alongside your microinjector, from microscopes, manipulators, to pre-pulled glass pipettes.
(1) MICRO-ePUMP
(1) Microinjector with Integrated Cell Penetrator and Internal Pressure Source.
(2) µPUMP
(2) Microinjector with Internal Pressure Source.
(3) PV850
(3) Microinjector with External Pressure Source (pressure source not included).
Timing, injection pressure and compensation pressure are adjusted independently using the touch screen interface. Time intervals can range from 10milliseconds to 2 seconds, where the injection pressure interval is triggered by using a foot switch, computer-controlled TTL pulse, or by manual selection on the unit display (MICRO-ePUMP uses only a foot switch or manual trigger selection).
System Components
| What is included with the system | Qty | MICRO-ePUMP | uPUMP | PV850 |
| Injector | 1 | Yes | Yes | Yes |
| 2-Step Foot Switch | 1 | Yes | Yes | Yes |
| 99164 MICRO-ePORETM Injection Assembly | 1 | Yes | ||
| 99788 MICRO-ePUMP Ground Cable | 1 | Yes | ||
| AC/DC 24 V Power Adapter | 1 | Yes | Yes | Yes |
| Capillary kit includes | 300744 | 300753 | 300753 | |
| 75122-110 1.0 mm Pipette Gaskets (green) | 4 | Yes | Yes | Yes |
| 75122-210 1.2 mm Pipette Gaskets (black) | 4 | Yes | Yes | Yes |
| 75122-310 1.5 mm Pipette Gaskets (red) | 4 | Yes | Yes | Yes |
| 75122-410 1.65 mm Pipette Gaskets (white) | 4 | Yes | Yes | Yes |
| 802828 O-ring Bunna N-002 | 2 | Yes | Yes | Yes |
| 75123 Pipette Handle Assembly | 1 | Yes | Yes | Yes |
| 75125 Pipette Holder | 1 | Yes | Yes | Yes |
| 99862 Tubing Assembly | 1 | Yes | Yes | Yes |
| 99865 Adapter Tube Assembly | 1 | Yes | Yes | Yes |
| CBL102 6’ Cable, 3.5 mm Mini Phone Plug to BNC | 1 | No | Yes | Yes |
| 803130 Stereo Splitter Cable, 3.5 mm | 1 | No | Yes | Yes |
| Input kit for Picopumps includes | 1 | 3116 | ||
| 0.25” NPT Fitting for Nitrogen Tank Regulator | 1 | Yes | ||
| 10’ Hard Tubing | 1 | Yes | ||
| Vacuum Fitting | 1 | Yes |
| SKU | VAR-MICRO-ePUMP |
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Documents
Videos
WPI's New MICRO-ePUMP Microinjector with Integrated Pressure Source
WPI's New PV850 Microinjector: Setting Up the Hardware
PV850 Microinjector Setup Tip
µPUMP tips
Microinjector Specifications
This unit conforms to the following specifications:
| PRESSURE | |
| Time Interval | 0.001-2.000 s |
| Time Increment | 0.001 s |
| Injection Pressure Range, Controlled | 0.01-87.0 PSI (0.07 - 599.84 kPa) |
| Injection Pressure Increment | 0.01 PSI (0.07 kPa) |
| Compensation Pressure Range, Controlled | 0.01-87.0 PSI (0.07 - 599.84 kPa) |
| Compensation Pressure Increment | 0.01 PSI (0.07 kPa) |
| PHYSICAL SPECIFICATIONS | |
| Power | 90-264 V, 50/60 Hz |
| Power Consumption | 48 W |
| Dimensions | 160 (W) x 217 (D) x 273 (H) mm (6.3 x 8.56 x 10.76”) |
| Shipping Weight | 8.6 kg (19 lb.) |
| Ambience | For indoor use only |
| Ambient Temperature | 15ºC - 40ºC |
| Relative Humidity | 10 - 75%, non-condensing |
* Both Backfilling and Eject Pressures
| AMBIENT CONDITIONS | |
| Ambience | Only for use indoors |
| Ambient Temperature | 15° C – 40° C |
| Relative Humidity | 10% – 75%, non-condensing |
| Atmospheric Pressure | 795 kPa – 1060 kPa Use up to a height of 2000 m above sea level |
| Degree of Pollution | 2 (IEC 664) |
STORAGE
| Air Temp | Relative Humidity | Atmospheric Pressure | |
| In Transport Packaging | -20 C – 70° C | 10% – 80% | 30 kPa – 106 kPa |
| Without Transport Packaging | - | - | - |
TRANSPORT
| Air Temp | Relative Humidity | Atmospheric Pressure | |
| General Transport | -25 C – 60° C | 10% – 95% | 30 kPa – 106 kPa |
| Air Freight | -40 C – 55° C | 10% – 95% | 30 kPa – 106 kPa |



