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48 Tube Seed Dispenser

Sows one seed into each of 48 screwcap or snapcap tubes in one slider motion, in about 45 seconds. Each tube is registered by its own Ø12.00 mm pocket on a 14.00 mm grid, so cap style and tube height do not affect the fit.

LabTIE 48 Tube Seed Dispenser seated on a 48 position rack of screwcap and snapcap tubesClick to enlarge

LabTIE seed dispenser above a tube rack of snap cap tubesFits on: the 48 position rack built to your tube
Open LabTIE transport case with the dispenser, mesh plate, converter, 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.

Tubes that fit+

Tubes that fit this dispenser

Download the measurements PDF ↓

One number decides it. Each tube is held by its own Ø12.00 mm pocket rather than by brackets closing around the rack, so the tube body diameter is what governs the fit, against the pocket and against the 2.00 mm web that separates one pocket from the next on the 14.00 mm grid.

Brand Catalogue no. Type & body Ø Fit
Eppendorf 0030120086 Safe-Lock 1.5 mL snapcap microtubeØ10.80 mm · Vendor · pocket +1.20 · neighbour gap 3.20 Verified fit
Eppendorf 0030120094 Safe-Lock 2.0 mL snapcap microtubeØ10.80 mm · Vendor · pocket +1.20 · neighbour gap 3.20 Verified fit
Sarstedt 72.694.600 Micro tube 1.5 mL, screwcapØ10.80 mm · Vendor · pocket +1.20 · neighbour gap 3.20 Verified fit
Greiner Bio-One 616201 Tube 2 mL, screwcapØ11.00 mm · Format · pocket +1.00 · neighbour gap 3.00 Verified fit
Corning Axygen MCT-150-C MaxyClear 1.5 mL snapcap microtubeØ10.80 mm · Format · pocket +1.20 · neighbour gap 3.20 Verified fit
Thermo Scientific 3456 GC vial 12 × 32 mm, screw neck autosamplerØ11.60 mm · Format · pocket +0.40 · neighbour gap 2.40 Verified fit
Any 1.5 or 2 mL tubethe upper limit the pocket accepts Envelope MicrotubeØ11.90 mm · pocket +0.10 · neighbour gap 2.10 Verified fit
Wider bodycryovials, 5 mL tubes on request Runs wider than the pocketneeds a converter built to that diameter Custom

Verified fit = the tube body enters the Ø12.00 mm pocket and clears its neighbours on the 14.00 mm grid. Vendor means the body diameter published by the manufacturer; Format means the diameter shared by that tube format, which every brand builds to. Body diameter is the one figure to confirm: anything below Ø12.00 mm enters the pocket, so a standard 2 mL microtube at 10.80 mm loads and unloads freely. Confirm against your own supplier drawing where a tolerance matters, since the rack is built to the tube you use and tube height is set at build time. Full figures are in LabTIE 48 Tube Seed Dispenser converter measurements, accurate modular seed dispenser.

The 48 position rack is built to this converter and supplied with the system; on the released rack every pocket clears the rack wall by at least 11.34 mm across the width and 17.64 mm along the length. Brand names are given so you can recognise your own labware; LabTIE is not affiliated with these manufacturers. Tube not listed? Send the tube 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 48 tube format1 mesh plate included
AsterMGLT54825
BarleyMGLT54840
BrassicaMGLT54853
CanolaMGLT54826
CarrotMGLT54806
CeleryMGLT54829
ChicoryMGLT54814
CornMGLT54842
CucumberMGLT54812
EggplantMGLT54849
FlaxMGLT54802
LettuceMGLT54815
MelonMGLT54858
MustardMGLT54845
OnionMGLT54819
PaprikaMGLT54823
ParsleyMGLT54834
PepperMGLT54803
PotatoMGLT54855
RadishMGLT54813
Redroot pigweedMGLT54808
SakuraMGLT54846
SorghumMGLT54828
SquashMGLT54847
StrawberryMGLT54801
SunflowerMGLT54852
TomatoMGLT54838
WheatMGLT54820
Custom seed plateMGLT54824

One plate per species, cut to that seed. Name the species you sow and the tube you use on your quote request. 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 rack built to your tube and the seed mesh plate for your 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 48 tubes in one motion, no tweezers and no static
  • ✓1.5 and 2 mL screwcap and snapcap tubes, and 2 mL GC vials, in the same pocket
  • ✓Mesh plates swap like a pipette tip to change species
Specifications+

Specifications

Container format 48 tubes, 1.5 and 2 mL screwcap or snapcap, and 2 mL GC vials
Positions per cycle 48, 6 × 8
Grid pitch 14.00 mm, equal on both axes
Grid span, first to last centre 70.00 × 98.00 mm
Tube pocket Ø12.00 mm, 2.00 mm web between pockets
Seating face 117.70 × 132.02 mm, rests on the rack rim
Rack top 92.67 × 133.27 mm, built to this converter
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 (CP-48W). Where the file name disagrees with the geometry the geometry is followed: the solid measures a 14.00 mm pitch and a Ø12.00 mm pocket. 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
  • 348 tube Dispenser (converter), the metal unit that connects the dispenser on the tubes
  • 448 position tube rack, built to your tube
  • 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, 48 tubes

Placing seeds into 48 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.

Each tube in its own pocket

The converter registers every tube in a Ø12.00 mm pocket instead of clamping the rack, so cap style and tube height do not affect the fit. Screwcap, snapcap and GC vials all seat the same way.

Static handled

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

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.

Fitted to your tube

Tube diameters and cap types vary between suppliers. The rack is built around the tube you actually use, so all 48 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 48 tube format, used where a run is counted in tubes rather than wells, typically for single seed DNA extraction. The Dispenser (converter) registers each tube in its own Ø12.00 mm pocket on a 14.00 mm grid and seats on the rack rim, so the tube body diameter is the only figure that decides the fit. Because tube diameters and cap types differ between manufacturers, the rack is matched to your specific tube so that all 48 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, the 45 Tube seed dispenser and the 48 Tube bead dispenser for bead beating the same tubes.

Documents to download+

Documents to download

PDFConverter measurements

LabTIE 48 Tube Seed Dispenser converter measurements, accurate modular seed dispenser: grid pitch, tube pocket, seating face and the 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 48 tubes receive one seed at the same moment.

Which tubes fit?

Standard 1.5 and 2.0 mL microtubes, screwcap and snapcap alike, and 2 mL GC autosampler vials. The pocket is Ø12.00 mm, so body diameter is the figure that decides it: a standard microtube sits at 10.80 mm. Anything wider, such as a cryovial or a 5 mL tube, needs a converter built to that diameter.

Does the cap style matter?

No. Each tube is registered by its own pocket rather than by brackets closing around the rack, so cap style and tube height do not affect the fit. Tube height is set at build time when the rack is made to your tube.

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 (MGLT54824) is cut to your seed, and our own tech division makes the plate in house.

Can I order more mesh plates later?

Yes. Every 48 tube 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 48-tube racks with a LabTIE dispenser?

Seat the 48 Tube Seed Dispenser over your rack, pour seeds onto the mesh, tilt to return surplus, then pull the slider. All 48 tubes fill in one action: no pipette tips, no tweezers required.

What seed sizes work with a 48-tube seed dispenser?

The 48 Tube Seed Dispenser accommodates seeds from 0.2 mm to 9.0 mm depending on the mesh plate installed. Exchangeable mesh plates let you switch between maize, soybean, tomato, and other species without replacing the dispenser frame.

How does a 48-tube seed dispenser improve germination throughput?

Manual loading of 48 individual tubes takes 3–6 minutes per rack. With the LabTIE dispenser, the same task is completed in under 30 seconds, freeing technician time for data collection and phenotyping rather than seed handling.

Can I use a 48-tube seed dispenser for Arabidopsis seeds?

The 48-tube format is generally used for larger seeds (>0.5 mm). For very small seeds like Arabidopsis thaliana, the 96-Well Arabidopsis Seed Dispenser with its fine mesh is better suited to the scale and seed size.

What is the best way to dispense seeds for DNA extraction using tube racks?

Dispense directly into 48-tube extraction racks for uniform seed number per tube. The <1% empty-tube error keeps tissue input consistent, reducing variation in DNA yield that would otherwise skew downstream genotyping.

How do I set up a 48-tube seed dispenser for plant breeding?

Assign each tray of seeds to a single variety, pull the slider for one rack per variety, and advance to the next tray. The tray design prevents cross-contamination between varieties without requiring disassembly between runs.

Can the 48-tube seed dispenser handle different rack formats?

The 48 Tube Seed Dispenser is matched to the 48-tube rack footprint. For 45-tube racks, 96-well plates, or 100-well trays, LabTIE makes dedicated dispensers, each engineered to seat precisely on its target container.

How accurate is the LabTIE 48-tube seed dispenser?

Under standard lab conditions the dispenser achieves <1% empty tubes. Accuracy depends on correct mesh plate selection for the seed size; using an over-large aperture is the most common source of double fills.

How do I clean a 48-tube seed dispenser between seed types?

Remove the mesh plate, invert and tap to clear remaining seeds, then rinse with 70% ethanol. For genetic isolation between GM and non-GM material, autoclave at 134 °C, 3 bar: all parts are autoclave-safe.

What are the shipping times for the LabTIE 48 Tube Seed Dispenser?

Standard units leave the Netherlands within 1–3 business days; EU parcels arrive in 2–5 days and international shipments in 5–10 days. Expedited shipping is available on request for time-sensitive planting schedules.

Do you offer custom mesh plates for the 48-tube dispenser?

Yes. Send a seed sample and LabTIE’s in-house technical division will produce a custom mesh plate matched to your seed size and tube inner diameter, usually within 5 working days.

Is the 48-tube seed dispenser compatible with cryogenic or deep-well tubes?

The dispenser is designed for standard 48-tube rack formats. For cryogenic tubes or deep-well configurations, provide your rack dimensions when requesting a quote so we can confirm seating clearance before ordering.

What is the best seed dispenser for a lab?

When your assay uses tube arrays rather than microplates, a tube-format dispenser is the appropriate choice. The LabTIE 48 Tube Seed Dispenser fills 48 tubes simultaneously in a single pass, handles seeds from 0.2 to 9 mm, and supports more than 120 species via interchangeable mesh plates. It is the standard choice for labs running pot-based germination trials or root phenotyping in tube racks.

Which manual seed dispensers are used in plant breeding research?

Breeding programmes that assess root architecture, stem elongation, or biomass in individual containers use tube-format dispensers to achieve uniform sowing density. The LabTIE 48 Tube Seed Dispenser delivers one seed per tube across all 48 positions simultaneously, eliminating the variability introduced by manual tweezers or hand-counting. It is used at seed companies and university phenotyping facilities where tube racks are the primary growth container.

What seed dispenser works best for Arabidopsis?

Arabidopsis thaliana is most often sown into microplates rather than tube arrays, but the LabTIE 48 Tube Seed Dispenser can handle Arabidopsis seeds when fitted with the correct mesh plate (0.2 to 0.5 mm aperture). For standard Arabidopsis work in 96-well or 48-well formats, the dedicated plate dispensers are more commonly specified. Contact LabTIE if your protocol requires single Arabidopsis seeds in individual tubes.

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

Choose the 48 tube format when your germination protocol requires individual containers with substrate depth greater than a microplate allows, such as soil columns or root observation tubes. The LabTIE 48 Tube Seed Dispenser loads all 48 tubes in one action and is validated for seeds from 0.2 to 9 mm. For plate-based germination assays, the 96-well or 48-well plate dispensers are more suitable.

What seed dispensers do genomics labs use for DNA extraction?

Genomics workflows that grow seedlings to the V2 or V3 leaf stage before extracting DNA sometimes use tube-format growth systems because tubes provide more root volume. The LabTIE 48 Tube Seed Dispenser ensures one seed per tube so that every DNA sample represents a single individual. For extraction from seedlings grown in 96-well plates, the 96-Well Seed Dispenser is the more standard instrument.

What should I look for when buying a seed dispenser?

For tube-format workflows, confirm that the dispenser grid matches your tube rack spacing and that mesh plates are available for your target species. The LabTIE 48 Tube Seed Dispenser is designed for 48-position tube arrays and supports seeds across more than 120 species. Also verify tube diameter compatibility: LabTIE can advise on fit during the quotation process.

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

For 96-well plate germination screening, the LabTIE 96-Well Seed Dispenser is the purpose-built instrument. The LabTIE 48 Tube Seed Dispenser is optimised for tube-rack workflows where individual containers are required. If your germination screen uses 48 individual tubes rather than a microplate, this dispenser is the appropriate choice.

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

Yes. The LabTIE 48 Tube Seed Dispenser supports seeds from 0.2 mm upward when the matching mesh plate is fitted. Arabidopsis and similarly fine seeds can be sown into individual tubes using this dispenser, provided the tube opening is sufficient to receive a seed of that size. For most Arabidopsis protocols in plate format, the dedicated 96-Well Arabidopsis Seed Dispenser is the more conventional choice.

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.