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45 Tube Seed Dispenser

Sows one seed into each of 45 screw cap or snap cap tubes in one slider motion, in about 45 seconds. Our most requested tube format for single seed DNA extraction, and the seed mesh plate is matched to the species you sow.

LabTIE 45 Tube Seed Dispenser loaded with seed above a 45 position snap cap tube rackClick to enlarge

LabTIE 45 Tube Seed Dispenser above a 45 position snap cap tube rackFits on: 45 position screw cap and snap cap tube racks
Open LabTIE transport case with the dispenser, mesh plate, tube rack, scrapers and manual in cut foamThe case as it arrives, example only
Step 1: filling the LabTIE seed dispenser with seedsPour the seed over the mesh plate
Step 2: one seed settled in every hole of the mesh plateOne seed settles in every hole
Swapping the LabTIE mesh plate to match a different seed sizeSwap the plate to change species

Click any photo to open it full size.

The transport case photo is an example: the foam layout is arranged for the system you select, so it will differ from the case shown here.

Racks and tubes that fit+

Racks and tubes that fit this dispenser

Download the measurements PDF ↓

Two checks decide the fit. The rack is judged on its upper section against the Dispenser (converter) clear span between brackets of 121.00 × 81.00 mm, never on its base footprint. The tube is judged on its body diameter against the Ø12.10 mm pocket on the 16.20 × 13.10 mm grid.

Racks

Brand Catalogue no. Type & top dims Fit
LabTIE International 45 tube holder Snap cap tube holder, built to this convertertop 120.00 × 80.00 mm · LabTIE · +1.00 / +1.00, 0.50 per side Verified fit
BioSpec Products 702VH45 Polypropylene vial rack, 45 × 1.5 or 2 mL microvialswithin 121.00 × 81.00 mm · LabTIE fit check Verified fit

Tubes

Tube Closure Body Ø & clearance Fit
2.0 mL microtube snap cap 10.80 mmpocket +1.30 · neighbour gap 2.30 Verified fit
2.0 mL microtube screw cap 11.00 mmpocket +1.10 · neighbour gap 2.10 Verified fit
1.5 mL microtube snap cap 10.80 mmpocket +1.30 · neighbour gap 2.30 Verified fit
1.5 mL microtube screw cap 11.00 mmpocket +1.10 · neighbour gap 2.10 Verified fit
2 mL bead beating tube screw cap, O ring 11.60 mmpocket +0.50 · neighbour gap 1.50 Verified fit
Wider bodycryovials, 5 mL, 15 mL, wide mouth any over 12.10 mmdoes not enter this pocket Custom rack

Verified fit = the rack’s upper section enters between the brackets with a margin within +2.00 / +2.00 mm on both axes, and the tube body enters the Ø12.10 mm pocket and clears its neighbours on the grid. LabTIE means our own measurement from the solid; BTA means the upper section derived from a published base footprint using the Bracket Taper Allowance of 4.00 mm per axis. Fit is judged on the upper section of the labware, never on the base footprint. Tube body diameter is the one figure to confirm: anything up to Ø12.10 mm enters, so a standard 2 mL microtube at 10.80 mm loads and unloads freely. Full figures are in LabTIE 45 Tube Seed Dispenser Converter Measurements, Accurate Modular Seed Dispenser.

Brand names are given so you can recognise your own labware; LabTIE is not affiliated with these manufacturers. Rack or tube not listed? Send the name or part number with your quote request.

45s
Per full rack
0.2–9.0 mm
Seed sizes
1 seed
Per position
Seed mesh plates for the 45 tube format1 mesh plate included
AsterMGLT54524
BarleyMGLT54552
BrassicaMGLT54526
CanolaMGLT54529
CarrotMGLT54531
CeleryMGLT54501
ChicoryMGLT54547
CornMGLT54551
CucumberMGLT54505
EggplantMGLT54530
FlaxMGLT54502
LettuceMGLT54553
MelonMGLT54540
MustardMGLT54528
OnionMGLT54554
PaprikaMGLT54542
ParsleyMGLT54555
PepperMGLT54509
PotatoMGLT54518
RadishMGLT54550
Redroot pigweedMGLT54507
SakuraMGLT54517
SorghumMGLT54534
SquashMGLT54533
StrawberryMGLT54525
SunflowerMGLT54504
TomatoMGLT54510
WheatMGLT54544
Custom seed plateMGLT54522

One plate per species, cut to that seed. Name the species you sow on your quote request, and whether you want the dispenser with or without the vial rack. Sowing a species that is not listed? The custom seed plate is cut to a seed sample you send us.

In stockQuote within 1 working day

Price on request

Every unit is quoted with the vial rack and the seed mesh plate for your own tubes and species, so we price per configuration. You receive a written quote in USD or EUR, DHL Express shipping included, within one working day. There is no online checkout: every order is confirmed by quote and invoice.

DHLWorld wide shipping, DHL Express7 to 20 working days
Product code Depends on the seed mesh plate you select above (see the species codes)
Availability In stock, except customs
Shipping World wide, DHL Express
Shipping time 7 to 20 working days
Shipping weight 4.4 kg, transport case included
  • ✓Sow 45 tubes in one motion, no tweezers and no static
  • ✓1.5 and 2 mL screw cap and snap cap tubes on the same rack matrix
  • ✓Mesh plates swap like a pipette tip to change species
Specifications+

Specifications

Container format 45 tubes, 1.5 and 2 mL screw cap or snap cap
Positions per cycle 45, 5 × 9
Grid pitch 16.20 × 13.10 mm
Clear span between brackets 121.00 × 81.00 mm
Tube pocket Ø12.10 mm, guide Ø6.60 mm, outlet Ø4.60 mm
Seed sizes 0.2 to 9.0 mm, set by the seed mesh plate
Seeds per position 1
Cycle time About 45 seconds per rack
Seed mesh plates 29 species plates, plus custom plates cut to your seed
Operation Manual slider, no power or air
Mesh plate material Anodised aluminium (6000), antistatic
Custom builds Made to specification

Converter figures are measured from the released STEP solid (CS-45W). Exact mesh plate and converter dimensions are confirmed on your quote.

What is included+

What is included

Delivered as a complete system in a transport case.

  • 1Seed dispenser body with slider
  • 2One metal seed mesh plate for your species
  • 345 tube Dispenser (converter), the metal unit that connects the dispenser on the tubes
  • 445 position vial rack for your own tubes
  • 5Scraping cards and brushes for levelling and cleaning
  • 6Transport case with manual and spare parts
  • +Additional seed mesh plates for other species, if ordered

The case photo on this page is an example. Your case is laid out for the system you select, so the foam layout will differ.

Why labs choose it+

Why labs choose it

One motion, 45 tubes

Placing seeds into 45 tubes with tweezers takes most of a coffee break and invites a missed or doubled tube. Filling, levelling and sliding takes about 45 seconds.

One seed, every position

The mesh plate holds a single seed per hole, so every tube receives exactly one seed in the same movement, run after run and between operators.

Change species in seconds

The seed mesh plate sets the seed it holds. Swap it and the same dispenser body sows a different species, with no calibration and no second instrument.

Static handled

Small seeds jump. The mesh plate is antistatic anodised aluminium, so seeds settle into the holes instead of scattering across the bench.

Nothing to break down

No motors, no software, no service contract. It works in a growth room or a seed lab exactly as it works on the bench.

Fitted to your tube

Tube diameters and cap types vary between suppliers. The rack is built around the tube you actually use, so all 45 positions line up every time.

General information+

General information

The LabTIE Seed Dispenser is a manual system that sows one seed per position. You pour the seed onto the mesh plate, tilt the dispenser so the surplus runs back into the tray, place it on the loaded rack and pull the slider once. One seed drops into every tube at the same moment.

This is the 45 tube format, the one most seed labs order. It uses a standard 45 vial rack for 1.5 and 2 mL screw cap and snap cap tubes. Because tube diameters and cap types differ between manufacturers, the rack is matched to your specific tube so that all 45 positions align and no seed is dropped between them.

It is used for single seed DNA extraction, seed counting, germination and vitality testing, and variety trials, in plant breeding companies, seed testing stations and research institutes. See also our seed mesh plates and the 45 Tube bead dispenser for bead beating the same tubes.

Documents to download+

Documents to download

PDFConverter measurements

LabTIE 45 Tube Seed Dispenser Converter Measurements, Accurate Modular Seed Dispenser: grid pitch, clear span between brackets and the racks and tubes that fit.

Download PDF ↓

PDFInstruction manual

Assembly, loading, dispensing, swapping mesh plates, cleaning and spare part numbers.

Download PDF ↓

CLEANCleaning instructions

Cleaning, drying and sterilising the body, slider and mesh plates between species.

Open documentation

PDFSeed dispenser brochure

Single seed dispensing from 0.2 to 9.0 mm into plates, tubes, vials, petri dishes and trays.

Download PDF ↓

Frequently asked questions+

Frequently asked questions

How does it work?

Pour the seed onto the mesh plate, tilt the dispenser so the surplus runs back into the tray, set it on the loaded rack and pull the slider once. All 45 tubes receive one seed at the same moment.

Which tubes fit?

Standard 1.5 and 2.0 mL microtubes, screw cap and snap cap alike, and 2 mL bead beating tubes. The pocket is Ø12.10 mm, so body diameter is the figure that decides it: a standard 2 mL tube sits at 10.80 mm. Anything wider, such as a cryovial, needs a rack made to that diameter.

Which seeds can it sow?

Seeds from 0.2 to 9.0 mm, across more than 120 seed types. The 29 standard plates cover species from Arabidopsis sized seed up to corn and sunflower. The plate, not the dispenser, sets the seed it holds.

My species is not on the list

Send us a seed sample. The custom seed plate (MGLT54522) is cut to your seed, and our own tech division makes the plate in house.

Do I need the vial rack?

The rack keeps your 45 tubes upright and aligned under the dispenser. Order it with the system unless you already use a rack with the same matrix, such as the BioSpec 702VH45 listed above.

Can I order more mesh plates later?

Yes. Every 45 format seed plate can be ordered on its own for a dispenser you already own. The full list is on the mesh plates page.

How do I dispense seeds into a 45-tube rack with a LabTIE dispenser?

Place the 45 Tube Seed Dispenser over the rack, pour seeds onto the mesh, tilt to recover surplus, then pull the slider once. All 45 tubes fill simultaneously in under 30 seconds.

What seed sizes work with a 45-tube seed dispenser?

The 45 Tube Seed Dispenser supports seeds from 0.2 mm to 9.0 mm via exchangeable mesh plates. Maize, sorghum, sunflower, and many vegetable species can be dispensed by fitting the corresponding mesh plate.

How does a 45-tube seed dispenser improve throughput for plant trials?

Manually loading 45 individual tubes typically takes 3–5 minutes; the LabTIE dispenser completes the same task in 8–30 seconds. This translates to 6–20× more racks processed per hour without additional labour.

Can I use a 45-tube seed dispenser for Arabidopsis seeds?

The 45-tube format is optimised for medium-to-large seeds. For Arabidopsis thaliana (0.2–0.5 mm), the dedicated 96-Well Arabidopsis Seed Dispenser with its fine mesh is the appropriate choice.

What is the best way to dispense seeds for DNA extraction in 45-tube format?

Dispense one seed per tube directly into extraction racks for consistent tissue mass. The <1% empty-tube rate eliminates most missed-sample errors and keeps your genotyping plate maps intact.

How do I set up a 45-tube seed dispenser for a plant breeding programme?

Pre-fill the seed tray with one variety, run a rack, then swap varieties. Each pull deposits seeds uniformly across all 45 positions: no position-by-position verification needed if the mesh plate is correctly matched to the seed.

What is the difference between a 45-tube and 48-tube seed dispenser?

The 45-tube model matches the 45-tube rack footprint (typically 5 × 9 layout), while the 48-tube model matches a 6 × 8 or equivalent 48-tube layout. Both use the same slider mechanism; only the seating plate and mesh dimensions differ.

How do I clean a 45-tube seed dispenser between different seed types?

Detach the mesh plate, brush clear, then rinse with 70% ethanol or autoclave at 134 °C for full sterilisation. The stainless-steel and PTFE construction handles unlimited autoclave cycles.

Can the 45-tube dispenser handle different container formats?

The 45 Tube Seed Dispenser is purpose-made for the 45-tube rack format. For other formats (96-well plates, 48-tube racks, 100-well trays), LabTIE offers dedicated dispensers sized to each container.

What are the shipping times for the LabTIE 45 Tube Seed Dispenser?

Standard in-stock units ship from the Netherlands within 1–3 business days; EU delivery is 2–5 days and international orders arrive in 5–10 days. Contact us for express options if your planting season is imminent.

Do you offer custom mesh plates for the 45-tube dispenser?

Yes. Submit a seed sample and LabTIE will cut a custom mesh plate sized to your seed and tube diameter, usually delivered within 5 working days of receiving the sample.

Is the LabTIE 45-tube seed dispenser compatible with paper germination pouches?

The dispenser is designed for rigid tube racks. For paper pouches or blotter-based germination systems, contact us. We can sometimes adapt the seating plate to alternative substrates, depending on your pouch geometry.

What is the best seed dispenser for a lab?

For labs using 45-tube arrays, the LabTIE 45 Tube Seed Dispenser is the optimal manual instrument, filling all 45 positions simultaneously in 8 to 45 seconds per rack. It supports seeds from 0.2 to 9 mm and is compatible with more than 120 species through its interchangeable mesh plate system. It is regularly used in root phenotyping, early vigour testing, and growth chamber experiments at European plant science institutes.

Which manual seed dispensers are used in plant breeding research?

Plant breeders evaluating traits in individual tube containers use the LabTIE 45 Tube Seed Dispenser to achieve consistent single-seed sowing across an entire rack in one motion. The 45-tube format is common in commercial breeding stations that use cylindrical pots or rhizotrons for root observation. The interchangeable mesh plates allow the same dispenser frame to be used across multiple crop species within the same facility.

What seed dispenser works best for Arabidopsis?

For Arabidopsis in tube format, the LabTIE 45 Tube Seed Dispenser fitted with an Arabidopsis mesh plate (apertures around 0.3 to 0.5 mm) can deliver single seeds per tube. However, most Arabidopsis labs prefer the 96-Well Arabidopsis Seed Dispenser for plate-based workflows because it aligns with standard imaging and phenotyping infrastructure. Contact LabTIE to confirm mesh plate availability for Arabidopsis in the 45-tube configuration.

How do I choose the right seed dispenser for germination assays?

Select the 45 tube format when your germination protocol requires deep substrate columns, cylindrical root zones, or individual plant isolation in a 45-position array. The LabTIE 45 Tube Seed Dispenser delivers one seed per tube consistently, removing operator variability from the sowing step. For plate-format germination assays, the 96-well or 48-well plate dispensers are the standard recommendation.

What seed dispensers do genomics labs use for DNA extraction?

Genomics experiments that need larger leaf tissue yields from individually tracked plants sometimes use tube-grown seedlings before DNA extraction. The LabTIE 45 Tube Seed Dispenser loads an entire 45-tube rack with one seed per tube in a single pass, preserving sample identity from sowing through harvest. For the more common 96-well plate extraction workflow, the 96-Well Seed Dispenser is the standard LabTIE instrument.

What should I look for when buying a seed dispenser?

When evaluating a 45-tube format dispenser, confirm that the tube spacing matches your rack, that mesh plates are catalogued for your seed species, and that single-seed accuracy is validated. The LabTIE 45 Tube Seed Dispenser meets all three requirements: it is dimensioned for standard 45-tube arrays, supports seeds from 0.2 to 9 mm, and its mesh plates are validated across more than 120 species. Custom plates are available for unlisted species.

Which seed dispenser is best for 96-well plate germination screening?

For 96-well germination screening, the LabTIE 96-Well Seed Dispenser is the correct instrument. The LabTIE 45 Tube Seed Dispenser is designed for tube-rack workflows where individual cylindrical containers are used. If your germination protocol requires 45 individually isolated plants in tubes rather than a microplate, this dispenser is the appropriate tool.

Are there manual seed dispensers that work with very small seeds like Arabidopsis?

Yes. The LabTIE 45 Tube Seed Dispenser accommodates seeds as small as 0.2 mm when fitted with the correct fine-aperture mesh plate. For Arabidopsis in tube format specifically, contact LabTIE to confirm current mesh plate availability and tube-opening compatibility. For plate-format Arabidopsis work, the 96-Well Arabidopsis Seed Dispenser is the more widely deployed instrument.

Our satisfaction guarantee

We believe in the products we invented and are committed to your success. If anything you buy from us proves unsatisfactory, send us an e-mail and we adjust the system, replace the item or refund the purchase price.

That guarantee covers custom seed mesh plates and custom racks as well, which is why we would rather see your tube and your seed first than guess at a fit.

Ready for a quote?

Tell us your tube, your species and your throughput. You receive a written quote within one working day.