An 80x70 thermal paper roll is an 80 mm wide receipt roll wound to 70 mm outer diameter — the mid-length format of the 80 mm class, typically delivering 55–60 metres and roughly 280–320 standard receipts per roll on a 12.7 mm core at 55–60 gsm. It sits between the short 80x50/80x65 rolls used in compact terminals and the long 80x80 rolls used in high-throughput counters. For buyers, the decisions that matter are grammage (which sets length per diameter), core size (which trades paper for rigidity), developer chemistry (BPA-free or phenol-free for retail compliance) and whether the roll is slit from export-grade jumbo stock with documented image life. A specification sheet that pins width, diameter, core, gsm and chemistry class prevents the two classic failures: rolls that do not fit the holder and receipts that fade before the returns window closes.
The 80 mm receipt roll family carries most of the world's counter transactions, and it is not one product. Within the same 80 mm width, buyers choose between at least four diameters — 50, 65, 70 and 80 mm — plus several core sizes and grammages from 48 to 65 gsm. Each combination changes the roll length, the receipts per roll and the freight cost per thousand receipts. The 80x70 occupies the practical middle: more paper per roll than the compact formats, without the outer-diameter limits some terminal holders impose on the 80x80.
For a distributor or retail chain, the difference between the right and the wrong point in that family is measured in changeover frequency, not unit price. A roll that is 10 mm too short doubles reload trips at the busiest lane; a roll that is too wide jams in the holder and generates returns. Understanding exactly what 80x70 delivers is the whole buying decision.
This guide works the format the way a category buyer would: what the two numbers mean and how much paper they deliver, how 80x70 compares with the neighbouring 80 mm formats, the grammage and core choices inside the format, and the specification and export checks that separate a reliable roll programme from a cheap one.
Buyers comparing these specifications can review our POS and receipt paper rolls, where the 80 mm family — including the 80x70 class — is documented per grade with width, diameter, core and chemistry before an order is placed.
- 80x70 means 80 mm width and 70 mm outer diameter — roughly 55–60 m of 55–60 gsm paper on a 12.7 mm core, or about 280–320 standard 80 mm receipts.
- The format is the mid-length class of the 80 mm family: more paper than 80x50/80x65 compact rolls, shorter changeover-friendly diameter than 80x80 where holders are size-limited.
- Grammage decides length per diameter: at a fixed 70 mm OD, a 55 gsm roll holds measurably more metres than a 60 gsm roll — pick the trade-off deliberately.
- Core size is not cosmetic: a 12.7 mm core maximises paper; a 25.4 mm core improves high-speed winding stability but trades metres for it.
- Pin width, diameter, core, gsm and developer chemistry on one specification sheet, and verify image life in writing — diameter labels alone do not define a roll.
What 80x70 actually delivers: the arithmetic of the format
The two numbers describe width and outer diameter, and the useful figure — length — has to be derived. Roll length follows the spiral formula: for a 70 mm outer diameter on a 12.7 mm core, the paper length is approximately the wound area divided by caliper. At 55 gsm (caliper around 60 microns) that yields roughly 58–60 metres; at 60 gsm (caliper around 66 microns) about 53–55 metres. Convert to receipts using a typical 80 mm transaction slip of 180–200 mm printed length and the roll holds roughly 280–320 receipts — the number that decides how often a lane operator stops to reload.
That arithmetic is why the 80x70 exists as a distinct orderable class. Compact terminals designed around a 65–70 mm holder cannot take an 80x80, but operators still want more metres than an 80x50 or 80x65 provides, and the 70 mm diameter fills the holder's full depth. Buyers should also be aware that some markets label the same physical roll differently — 80 x 70 mm and 80 x 70 m descriptions both circulate — so the specification sheet, not the listing, must carry the diameter figure.
Carton economics follow the same logic. Rolls of this class typically pack 50 or 100 per carton depending on gsm and wrap, and a 20-foot container absorbs a predictable pallet count. Procurement teams comparing quotations should normalise offers to metres per carton and per container rather than comparing roll counts — two bids at the same roll count can differ by ten percent in delivered paper.
| Format | Outer diameter | Length @ 55–60 gsm | Approx. receipts | Typical duty |
|---|---|---|---|---|
| 80 x 50 | 50 mm | 30–32 m | 150–170 | Compact handheld and mobile terminals |
| 80 x 65 | 65 mm | 48–52 m | 250–280 | Compact counter terminals with shallow holders |
| 80 x 70 | 70 mm | 53–60 m | 280–320 | Mid-length counter POS; full-depth holders |
| 80 x 80 | 80 mm | 70–83 m | 370–450 | High-throughput lanes with unrestricted holders |
Length figures are derived from the spiral area formula and vary with actual caliper and core ID; the supplier's measured length per roll is the number to contract on.
Grammage, core and chemistry: the three choices inside the format
Grammage is the first decision because it trades feel and durability against metres per diameter. A 55 gsm stock gives the 80x70 its maximum length and suits high-volume, short-retention receipts; a 60 gsm stock feels stiffer, prints with slightly better contrast on fast heads and survives handling better in outdoor or kitchen environments, at the cost of a few metres per roll. Lightweight 48–50 gsm options exist where operators push for maximum receipts per roll, but they demand better head alignment and are less forgiving in humid climates. The honest approach is to choose the grammage for the receipt's duty, then accept the length that the diameter then delivers.
Core size is the quieter decision. The 12.7 mm (half-inch) core is the market default and maximises paper per diameter; a 25.4 mm (one-inch) core appears in some high-speed and kiosk-class mechanisms for winding stability and smoother feed at speed. Buyers replacing stock for an existing fleet should match the core the holder was designed for — the failure mode of mixing them is a roll that spins loosely or a spindle that will not seat. Where a programme is being created from scratch, the core choice should be written into the specification alongside width and diameter so no production batch drifts.
Developer chemistry is the compliance decision. Retail receipts pass through public hands, and destination-market rules on bisphenols in thermal paper continue to tighten; BPA-free is the floor and phenol-free developers are increasingly specified by European and Gulf retail chains. Chemistry class also drives image life, so the specification should state the retention expectation — typically five to seven years for standard BPA-free stock under office retail storage — and demand it in writing.
Where the two coating constructions are being weighed for the programme, our top-coated vs non top-coated guide compares the builds on retention, cost and machine behaviour. For counter receipts, uncoated stock remains the standard; top-coated earns its premium where receipts see heat, moisture or long retention.
- 55 gsm: maximum metres per diameter; standard choice for high-volume counter receipts.
- 60 gsm: stiffer feel and better durability; a few metres fewer per 70 mm roll.
- 12.7 mm core: paper-maximising default; 25.4 mm only where the mechanism specifies it.
- Chemistry: BPA-free as the floor; phenol-free where the destination market or chain policy requires it.
How the rolls are made and why it shows at the counter
Finished 80x70 rolls are slit and rewound from jumbo parent stock on converting lines. The parent's coating quality, moisture content and edge quality transfer directly into the finished roll: a poorly slit parent produces dusty edges that deposit in the printer mechanism, and a parent wound with loose tension produces rolls that telescope in the holder. This is why serious buyers audit the converting source rather than only the finished roll.
Winding tension and end-face quality deserve specific attention at inspection. A good 80x70 roll presents flat, concentric end faces, wound firmly enough that the outer layers do not slip, and free of the telescoping and ridging that cause uneven feed. End-edge dust is the most common defect with a mechanical consequence: it accumulates on sensors and platens and surfaces as misfeeds weeks later.
Buyers consolidating an 80 mm programme across several formats can review our custom thermal paper programme, where width, diameter, core, gsm and developer class are quoted together on a single specification sheet. Holding one parent grade across all 80 mm formats keeps print density and image life identical between the compact and long rolls in the same stores.
The export buying checklist for 80x70 programmes
First, contract on measured specifications, not nominal ones. The purchase order should carry width 80 mm +0/−0.5, outer diameter 70 mm ±1, core ID, grammage with tolerance, developer class and minimum image retention — and the supplier's inspection report should show measured values per batch. Nominal listings hide the variations that generate store-level complaints.
Second, pack for the voyage. Thermal stock is hygroscopic, and a container crossing the equator cycles through conditions that loosen badly wound rolls and age unprotected paper. Export-grade packing means moisture-barrier wrap per roll or shrink pack, cartons with a predictable pallet pattern, and desiccant strategy agreed for long routes. Buyers planning the first container can use our export shipping guide, which covers pallet standards, moisture-barrier packing and the document set for ocean freight.
Third, trial before the container. A carton-level trial in a handful of representative stores — busiest lane, compact terminal, outdoor window lane — validates fit, feed and image quality on the actual fleet before the full order ships. The trial also settles the receipts-per-roll figure locally, which is the number store managers will use to judge the programme.
- Specification sheet: width, OD, core, gsm, chemistry, retention — measured, not nominal.
- Inspection: flat end faces, no telescoping, no edge dust, wrap integrity per roll.
- Packing: moisture-barrier wrap, agreed pallet pattern, desiccant for long routes.
- Trial: one carton in representative lanes before committing the container.
The cheapest metre of thermal paper is the one that never generates a returns call — specification discipline at order time is what buys it.
Frequently asked questions
What does 80x70 mean on a thermal paper roll?
The first number is the roll width (80 mm, matching 80 mm-class printers) and the second is the outer diameter (70 mm). Length is derived from the diameter, core and caliper: typically 53–60 metres at 55–60 gsm on a 12.7 mm core, or roughly 280–320 standard receipts.
How many metres are in an 80x70 thermal roll?
It depends mainly on grammage. At 55 gsm expect about 58–60 m; at 60 gsm about 53–55 m, both on a 12.7 mm core. A larger core reduces length, so the core size must be part of the specification when comparing quotations.
Can an 80x70 roll be used where an 80x80 was specified?
Usually yes — a smaller diameter fits wherever the larger one did — but the roll holds fewer metres and changes out more often. The reverse is not true: an 80x80 will not fit holders designed with less than 80 mm of diameter clearance. Match the diameter the terminal holder was designed for.
Which GSM is best for an 80x70 receipt roll?
55 gsm is the standard choice, maximising metres per diameter for high-volume counters. 60 gsm suits environments where stiffness and handling durability matter, such as kitchens and outdoor lanes, at the cost of a few metres per roll. 48–50 gsm exists for maximum-receipt programmes but is less forgiving in humid climates.
What should be checked before ordering a container of 80x70 rolls?
Pin the full specification — width, outer diameter, core ID, grammage, developer chemistry and image retention — as measured values with tolerances, verify export packing (moisture-barrier wrap, pallet pattern, desiccant), and run a carton-level trial in representative stores before the full shipment.