RK HSC-450 Induction Wad Punching Machine – Heavy Duty Die Cutting for Induction Sealing Wads

The HSC-450 is a roll fed flatbed die cutting machine with a heavy duty press section, arranged for punching induction sealing wads from roll stock. The unwind loads pneumatically and takes rolls of up to 1300 mm diameter on a 3 inch core. A nip roll unit on the unwind and a servo controlled nip roll on the in-feed pull the web forward in precise steps, and a gauge unit keeps the material aligned before it enters the die.

The die cutting unit measures 450 x 330 mm with a working area of 430 x 300 mm, and it works with up-stock tooling. After punching, the base paper and the waste web are handled separately: base paper unwinds and rewinds on 3 inch collator cores, an out-feed nip roll keeps the web taut and a waste rewinder with 3 inch collator core takes the skeleton up to 600 mm diameter. A 7.5 HP three-phase motor with AC variable speed controller drives the machine, and the whole system runs on fully digital electronic controls.

Heavy Duty Die Cutting Section

The press is built for the thickness and long runs of induction liner material. A 430 x 300 mm working area lets many wads be punched in every stroke.

200 Strokes per Minute

The machine runs at a maximum of 200 strokes per minute, depending on the feed length. With a multi-cavity die, that translates into a high wad count per hour.

Pneumatic Auto Unwind for Large Rolls

The unwind unit loads with pneumatic assistance and accepts rolls of up to 1300 mm diameter on 3 inch cores, so long runs go on with fewer roll changes.

Servo Controlled In-Feed

The nip roll on the in-feed unit is servo motor controlled. Each feed step is the same length, so the die lands on fresh material with minimal gap between punches and less waste.

Gauge Unit for Material Alignment

A gauge unit aligns the web before the die, keeping the punch pattern square to the material across the full 430 mm width.

Base Paper Handling on Collator Cores

Where the wad material has a base paper, it unwinds and rewinds on 3 inch collator cores, keeping the liner protected up to the die and recovering the base paper afterwards.

Waste Rewinder Unit

The punched skeleton is wound on a waste rewinder with 3 inch collator core, up to 600 mm diameter, instead of piling up on the floor.

Fully Digital Electronic Control

Machine operation is handled by a fully digital electronic control system, with a 7.5 HP three-phase AC motor and variable speed controller as the main drive.

The operator loads the roll of induction liner material on the pneumatic unwind and threads it through the unwind nip roll, the gauge unit and the servo in-feed nip roll into the die cutting section. Where the material carries a base paper, that paper is separated and routed to its own rewind on a 3 inch collator core. The wad die is fitted in the up-stock die cutting unit and the feed length is set on the digital controller.

In production, the servo in-feed advances the web by exactly one feed length, the press strokes and punches a full set of wads, and the web advances again, up to 200 times a minute. Punched wads are collected from the die area while the skeleton passes through the out-feed nip roll to the waste rewinder. Because the unwind holds up to 1300 mm diameter and the waste rewinder up to 600 mm, the machine runs for long stretches between roll changes.

• Induction sealing wads – cap liners for pharmaceutical, food, agrochemical, lubricant and cosmetic bottles and jars.
• Cap liner and seal producers – high volume wad punching from roll stock for closure manufacturers.
• Foam and laminate discs – punching disc shaped components from thick roll materials within the 430 mm width.
• Contract converters – heavy duty punching jobs that a standard label die cutter cannot handle.

The HSC-450 is built for the induction liner materials used for sealing wads, which are supplied in rolls up to 430 mm wide, with or without a base paper. The heavy duty press section and the base paper handling are what make it suitable for these thicker laminates. Send RK a sample of your wad material and your die layout so the tooling, feed length and stroke rate can be confirmed for your job.

• Flatbed Roll to Roll Die Cutting (RK-3040-D)flatbed die cutting for labels and lighter roll materials.
• Flatbed Die Cutting With Sheet Cutting (RK-3040-S)roll to roll flatbed die cutting with a sheet cutting option.
• Foam Die Cutting MachineRK's die cutter for foam roll materials.
• Automatic Core Cutting Machinefor cutting the 3 inch cores used on the rewinders.

RK Label Printing Machinery Pvt. Ltd. has manufactured label printing and converting machinery in Ahmedabad, Gujarat since 1995, operates three manufacturing units and supplies customers in 23+ countries. The HSC-450 comes out of the same flatbed die cutting engineering that RK uses across its label range, scaled up for the thickness and stroke count of wad production. Web handling, servo feeding and waste rewinding are all designed and built by RK, so one manufacturer is responsible for the whole machine and its service.

• Material width: the HSC-450 feeds up to 430 mm. Check your liner roll widths.
• Roll size: the unwind takes up to 1300 mm diameter on 3 inch cores; larger rolls mean fewer changeovers.
• Wad size and die layout: the working area is 430 x 300 mm. How many cavities fit decides your output per stroke.
• Output target: up to 200 strokes per minute, multiplied by cavities per stroke, gives your theoretical wads per minute.
• Base paper: if your material carries a base paper, the machine's collator core unwind and rewind for it are already included.
• Waste handling: the waste rewinder takes up to 600 mm diameter, so match it to your run lengths.

The price of the RK HSC-450 depends on the configuration, including die tooling, feed arrangement and any options for your material. RK quotes ex-works Ahmedabad with GST at 18% applicable. Engineer travel and stay for installation and training at your site are borne by the customer. Share your wad sizes, material specification, roll sizes and monthly output with RK, and the engineering team will confirm the right build and quote against it.