Copper Band Press for Ammunition Shell: 1000-Ton, 12-Cylinder Radial Hydraulic Press
A shell’s copper driving band isn’t decoration — it’s what engages the rifling inside a gun barrel and imparts the spin that keeps a projectile stable and accurate in flight. Get the band misaligned or unevenly seated, and you’ve compromised performance before the round ever leaves the factory. Neometrix’s Copper Band Press for Ammunition Shell is a 1000-ton radial hydraulic press purpose-built to shrink-fit that band onto artillery and tank shell bodies with a precision a manual process simply can’t guarantee.
Twelve Cylinders, Moving as One
The press uses twelve hydraulic cylinders arranged radially in a single horizontal plane, spaced 30° apart, each driving a heavy-duty pressing jaw. All twelve move synchronously into a central pressing station, applying uniform radial force into the shell’s groove — because a band pressed unevenly by even one under-performing cylinder is a band that won’t seat correctly.
Why Synchronous Force Matters More Than Raw Tonnage
Radial force is digitally adjustable from 250 to 1000 tons via the HMI, running at 270 kg/cm² working pressure (300 kg/cm² maximum). But tonnage alone doesn’t guarantee a good band-seat — the twelve cylinders are fabricated in one piece with no welding, bolted to a rigid one-piece structural frame with machined mounting surfaces for square alignment, because any deviation between cylinders would translate directly into an unevenly pressed band.
Indexing for Multi-Pass Pressing
An automatic indexing mechanism can rotate the shell body between 15° and 90° per step, one to eleven times per cycle, letting a single press station complete multiple pressing passes around the shell’s circumference without a manual reposition — with dwell time adjustable from 0 to 15 seconds between passes.
A Power Pack Built for Continuous Duty
Behind the pressing station sits a minimum 1500-litre hydraulic oil reservoir, piston-type high-pressure pumps, a heat exchanger, and metered piston lubrication — sized to deliver consistent operating pressure across a production rate of at least 20 band-pressed bodies per hour, with each manual load/unload step capped at 25 seconds to keep cycle time predictable.
Frequently Asked Questions
Why does a copper band press need twelve separate hydraulic cylinders instead of one large central cylinder?
Because the copper band has to be pressed evenly around the entire circumference of the shell, and a single central cylinder can’t apply force radially inward from all directions at once. Twelve hydraulic cylinders arranged 30° apart in a single horizontal plane, all moving synchronously, apply uniform radial force into the shell’s groove from every direction simultaneously. If the band were pressed unevenly — more force from one side than another — it wouldn’t seat correctly against the shell body, which would compromise how it engages with the barrel’s rifling during firing and directly affect projectile stability and accuracy. That’s why the cylinders themselves are fabricated in one piece with no welding and bolted to a rigid frame with machined mounting surfaces — any misalignment between individual cylinders would show up as an unevenly pressed band.
Why does the press need an indexing mechanism if the twelve cylinders already press the band all the way around in one stroke?
Because for many shell types, a single synchronous press from all twelve cylinders provides only one pressing pass, and some band and shell combinations need multiple passes at slightly rotated positions to fully seat the band without leaving any part of the groove under-pressed. The automatic indexing mechanism rotates the shell body between pressing passes — in steps of 15° to 90°, repeated one to eleven times per cycle depending on the shell and band specification — with an adjustable dwell time between each pass. This lets a single pressing station, rather than a bank of differently-angled stations, handle shells that require more thorough or repeated pressing coverage, while still keeping total cycle time predictable enough to sustain a minimum production rate of 20 band-pressed bodies per hour.
Get In Touch
For full specifications, RFQs, or a technical discussion about the Copper Band Press for Ammunition Shell:
– Product page: Copper Band Press for Ammunition Shell
– Email: [email protected]
– Phone: +91-7777-876-876
