Slitter Rewinder Machine: Width, Speed and Tension
XIAOPAI · Wenzhou Xiaopai Electric Power Technology Co., Ltd. · Zhejiang, China
A slitter rewinder looks simple from across the shop floor: a wide roll feeds in one end, narrow rolls come out the other. The difference between a line that runs quietly for years and one that chews film on the second shift is decided before installation, in three numbers - width, speed and tension.
This guide walks through each one. XIAOPAI - Wenzhou Xiaopai Electric Power Technology - supplies slitter rewinder machines by working with long-established Chinese manufacturers, and the same three numbers drive every quotation it prepares.
WIDTH SETS THE MACHINE CLASS
Everything else scales from web width. A slitter rewinder rated for a 90 cm web cannot take a 110 cm film, and a machine oversized for the job wastes floor space and energy for no gain. The Type 1300 Horizontal Slitting Machine that XIAOPAI supplies offers effective cutting widths of 45 / 60 / 65 / 90 cm, which covers most flexible packaging rolls in single or multiple slits.
The practical rule is to start from the widest master roll the converting line actually produces, add an allowance for edge trim, and buy just enough width. Width also decides the rewind station layout, so it is the first number to fix, not the last.
SPEED IS TWO NUMBERS, NOT ONE
Buyers often fixate on one headline speed, but a slitter rewinder carries two figures. The first is mechanical speed - how fast the drivetrain can turn. The second is slitting speed - how fast the blades can cut cleanly on a given material. On the Type 1300 Horizontal Slitting Machine, mechanical speed reaches 200 m/min while slitting speed runs at 150 m/min. The lower number is the one that matters for daily output, because it accounts for blade contact and material behaviour.
Matching the two speeds to the substrate avoids the classic failure of running film through a machine too fast for clean cuts, then slowing the line down and losing the output it was bought for.
TENSION AND GUIDING KEEP THE ROLL STRAIGHT
Cutting straight is easy. Rewinding straight, roll after roll, is what separates a useful slitter from an expensive bottleneck. Two systems carry that job: web tension control and edge guiding.
The Type 1300 line XIAOPAI supplies uses pneumatic-shaft unwind and rewind with magnetic powder tension control, and a photoelectric guiding system with a 120 mm guiding range and a repeat positioning error of about ±0.5 mm. That combination keeps each finished roll tight and even, which is what downstream lamination and pouch making depend on.
MATCH THE MACHINE TO THE MATERIAL
One slitter does not treat every substrate the same way. Plastic film wants light, even tension and sharp blades; aluminium foil wants a firmer grip and gentler acceleration; non-woven and roll paper sit in between. The general-purpose design of the Type 1300 Horizontal Slitting Machine covers these roll materials for fixed-width slitting, edge trimming and neat rewinding, so the material range should be stated up front when requesting a quote.
The flexible packaging sector keeps a steady demand for slitting and rewinding capacity. Industry bodies such as the Flexible Packaging Association track the U.S. market in their state of the industry reporting, and the slitting step sits near the end of every converting line.
THE SUPPLY RELATIONSHIP
It is worth being precise about who makes the machine. For slitter rewinders, XIAOPAI works with long-established Chinese manufacturers - it does not build the slitters itself, and it does not claim to. XIAOPAI's role is to hold the specification, coordinate export documentation and after-sales support, and give the buyer a single point of accountability. For solventless laminating machines the relationship is different, with XIAOPAI acting as the authorized global distributor of SINSTAR; that line is covered separately.
For the finished rolls that come off the slitter, see the finished packaging film page.
