Plastic Limit Roller
Product Code : LSK-SM-10664
Plastic Limit Roller (SKU LSK-SM-10664) is a hand device for the plastic limit test that rolls a soil thread mechanically between two plates instead of by palm on glass. It gives students a more consistent thread in Atterberg limits practicals at B.Tech, diploma and TVET level. It reaches engineering colleges, training institutes, tender contractors and distributors through Science Lab Supplies, operating from Ambala, India.
Specifications
The roller's specification is broken into single facts in the table. In short, top and bottom roller plates are separated by 3.2 mm (1/8 in) side rails, the top plate has an integral handle, and adhesive-backed absorbent paper that adds no fibre to the soil lines the plates; a 50-sheet pad comes with it.
| Specification | Value |
|---|---|
| SKU | LSK-SM-10664 |
| Method | Mechanical rolling for the plastic limit |
| Plates | Top and bottom roller plates |
| Plate spacing | 3.2 mm (1/8 in) side rails |
| Handle | Integral on the top plate |
| Thread measures | Rigid acrylic, 4.8 mm and 9.5 mm (3/16 in and 3/8 in) |
| Paper | Adhesive-backed absorbent paper |
| Paper property | Adds no fibre to soil samples |
| Paper supply | 50-sheet pad |
| Documentation | Instructions |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Plastic Limit Roller
The roller is used to find the plastic limit, the water content at which a soil thread starts to crumble. Rolling between fixed rails sets the thread thickness, so the end point depends less on hand technique, which helps when a whole class tests the same soil.
- B.Tech / B.E. civil engineering: plastic limit and plasticity index for soil classification, using the liquid limit found with the Cone Penetrometer.
- Diploma civil engineering: Atterberg limits practicals on clays and silts, with crumbled threads weighed on a Triple Beam Balance 610g and dried in the Drying Oven.
- TVET construction materials modules: judging the workability of clay soils for fill and embankments.
Standard Scope of Supply
Each roller is supplied with its top and bottom plates, side rails and top-plate handle, a 50-sheet pad of adhesive absorbent paper and a set of instructions. Moisture tins, a balance and a drying oven for the crumbled threads are not part of the supply and can be quoted separately.
Packing, MOQ and Lead Time
Tell us whether you need one roller or one for every bench; the quotation will state packing, delivery time and price for that number. A plastic limit set or liquid limit device can be added, keeping workshop tools for technical training institutes on one order.
Science Lab Supplies holds an Importer-Exporter Code as a registered exporter and can ship to buyers in Sri Lanka, Vietnam, Malaysia, Peru, Egypt and Iraq. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). A note on the contact page brings an offer, the roller can sit in the enquiry cart with other limit-test items, and formal purchases are routed through the lab tender page.
Frequently Asked Questions
How does the roller differ from rolling by hand?
Hand rolling on a glass plate relies on the operator judging the thread diameter. The roller's 3.2 mm rails set the thread thickness mechanically, so results depend less on technique.
What is the adhesive paper for?
The absorbent paper is fixed to the plates, draws moisture from the thread as it is rolled and adds no fibre to the soil. A 50-sheet pad comes with the roller.
Who supplies the Plastic Limit Roller?
Science Lab Supplies in Ambala, India is the supplier. Colleges, polytechnics, TVET centres, contractors and distributors send their quantity and receive a quotation covering the roller, its paper pad and instructions.
Can it be bought with the other Atterberg limit tests?
Yes. The Plastic Limit Set, both Casagrande liquid limit devices, the Cone Penetrometer and the Shrinkage Limit Set can all go on one quotation for a complete Atterberg limits bench.
Related Plasticity and Consistency Test Equipment
The plastic limit is paired with the liquid limit to give the plasticity index, and clay behaviour is also judged by shrinkage and volume change. These Soil Mechanics items cover the hand method, two liquid limit devices, shrinkage tests and moisture drying, and all can be quoted with the roller.
- Plastic Limit Set — 3 mm x 150 mm reference rod with a 20 x 15 cm glass plate frosted on one side.
- Hand Operated Casagrande Equipment — cup drop height adjusted by a nut at the rear of the cup.
- Motorised Casagrande Equipment — spun brass cup on a pin-and-slot mount over a moulded hard rubber base.
- Shrinkage Limit Set — also gives shrinkage ratio, shrinkage index and volumetric shrinkage.
- Prong Plate — acrylic plate with three rust-resistant metal prongs for immersing soil pats.
- Laboratory Bench Oven — blower-fan hot air circulation with 2.4 kW heater elements.
- Soil Volume Change Meter — 70 mm specimen ring with charts converting readings to a PVC rating.
Browse the full Soil Mechanics range, the Balances and Scales range for weighing moisture samples, or all TVET lab equipment.
Last updated: 9 October 2026
