Product Description
The Festo VTOI dispense head is an advanced 8-channel dosing solution for non-contact dispensing and aspiration of liquid media in the microlitre range. Featuring a compact 9 mm grid dimension that aligns perfectly with microtiter plate formats, the VTOI enables simultaneous dispensing to eight wells. A 96-channel system requires only 12 valves—84 fewer than conventional designs—dramatically simplifying control architecture while maintaining high throughput. The unique vacuum function supports both dispensing and aspiration, making it suitable for pipetting applications including antigen handling and cell culture.
Key Features & Advantages:
Dispense and Aspirate (Pipetting) Function: The integrated vacuum capability allows the VTOI to both dispense liquids and aspirate (draw in) liquids from sources, enabling complete pipetting workflows including liquid transfer between vessels
8-Channel Parallel Operation: Each valve position controls 8 output channels, allowing simultaneous dispensing into 8 wells of a microtiter plate. A 96-channel system requires only 12 valves—84 fewer than conventional 1-channel-per-valve designs
Exceptional Dosing Precision: Delivers typical coefficient of variation (CV) of ≤3% for intra-run (within same run) and ≤5% for tip-to-tip (across channels), even down to the microlitre range
Compact 9 mm Grid Dimension: Optimised for standard 9 mm microtiter plate well spacing, enabling side-by-side mounting of multiple VTOI heads for increased throughput without alignment issues
Aggressive Media Compatibility: All media-contacting components are manufactured from high-performance materials including PEI (ULTEM), PPS, FKM, ETFE, and high-alloy stainless steel (1.4404), ensuring chemical resistance against aggressive reagents
Minimal Dosing Volume: Achieves a minimum dosing volume of 1 μl, enabling precise handling of expensive reagents and samples in micro-volume applications
Low Internal Volume: Features 108 μl internal volume (manifold only) or 167 μl (manifold with dosing needles), allowing quick media changes and efficient rinsing between different liquids
Vacuum and Pressure Compatibility: Operating pressure range of -0.2 bar to 0.65 bar supports both positive pressure dispensing and vacuum-based aspiration
Low Power Consumption: Consumes only 1.8-2.0 W per valve at 24 V DC, enabling energy-efficient operation in multi-channel configurations
24V DC Electrical Actuation: Operates on 24 V DC ±10% with integrated 0.15 m cable (AWG28) or L9 plug connector options, allowing straightforward connection to valve control modules like VAEM
Precision Dosing Needle: Features 0.3 mm nominal diameter dosing needle, 30 mm length with conical tip for accurate droplet formation and placement
Robust Construction: Media-contacting materials include ETFE, FPM, PEI, PPS, and high-alloy stainless steel 1.4404, providing excellent durability and chemical resistance
Technical Specifications:
Brand: Festo
Model: VTOI (VTOI-V8-30D3-U14-08-V-S015-1)
Product No.: 8114037
Product Type: Dispense Head / Dosing Head / Pipetting Head
Grid Dimension: 9 mm
Number of Valve Positions: 1
Number of Output Channels per Valve: 8
Total Output Channels per Head: 8
Valve Function: 2/2-way, normally closed, monostable
Reset Type: Mechanical spring
Sealing Principle: Soft
Piloting Type: Direct
Operating Pressure Range: -0.2 bar to 0.65 bar (vacuum and pressure)
Vacuum Suitability: Yes
Nominal Size (Valve): 0.8 mm
Dosing Needle Nominal Diameter: 0.3 mm
Dosing Needle Length: 30 mm
Dosing Needle Shape: Conical
Minimum Dosing Volume: 1 μl
Dosing Precision (Typical CV): ≤3% intra-run, ≤5% tip-to-tip
Internal Volume (Manifold only): 108 μl
Internal Volume (Manifold + Needles): 167 μl
Operating Voltage DC: 24 V ±10%
Power Consumption: 1.8 W to 2.0 W
Duty Cycle: 100%
Degree of Protection: IP30 (assembled state)
Ambient Temperature: 5°C to 40°C
Media Temperature: 5°C to 50°C
Storage Temperature: -20°C to 70°C
Fluid Connection: 1/4-28 UNF female thread (fitting for tubing 3 mm OD included)
Electrical Connection Options: L9 plug (2-pin) or 0.15 m open cable with AWG28 conductors
Media-Contacting Materials: ETFE, FPM (FKM), PEI (ULTEM), PPS, high-alloy stainless steel 1.4404
Housing Material: PEI (ULTEM), PPS
Seal Material: FPM (FKM)
Type of Mounting: Through-hole for M3 screw
Mounting Position: Vertical
Product Weight: 55 g
Pollution Degree: 2
Material Note: RoHS-compliant, Contains PWIS (paint-wetting impairment substances)
Country of Origin: Germany
Complete System Components (Recommended by Festo):
An 8-channel pressure-controlled dispensing system requires only five basic modules: VEAB pressure/vacuum regulator, reservoir liquid storage vessel, VTOI dispense head, VAEM valve control module, and handling system for head positioning.
Ideal For:
Dispensing reagents into 96-well and 384-well microtiter plates, aspirating liquids when working with antigens or during cell culture, high-throughput screening, pharmaceutical research, biotechnology applications, medical diagnostics, genomics and proteomics sample preparation, laboratory automation systems requiring both dispensing and pipetting functions, and processing of aggressive reagents requiring chemically resistant components.
Why Choose Festo VTOI Dispense Head?
Engineered by Festo with unique dual dispensing and aspiration functionality for complete pipetting workflows, 8-channel parallel operation reducing valve count by 84% (12 valves for 96 channels), exceptional dosing precision (≤3% CV intra-run), compact 9 mm grid for microtiter plate compatibility, 1 μl minimum dosing volume, aggressive media compatibility (PEI, PPS, FKM, ETFE, 1.4404 steel), low 167 μl internal volume for easy rinsing, -0.2 to 0.65 bar operating pressure range, low 2.0 W power consumption, 24V DC actuation, IP30 protection for laboratory environments, RoHS compliance, and German engineering quality, this dispense head ensures flexible, precise, and contamination-free liquid handling for demanding laboratory automation applications.
Tags:
#Festo #VTOI #DispenseHead #DosingHead #PipettingHead #LiquidHandling #MicrotiterPlate #8Channel #Aspiration #LaboratoryAutomation #HighThroughput #MalaysiaSupplier
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