ESI Extrusion Services, Inc.

Leader in the design and manufacture of automated downstream extrusion equipment and systems.

25 Plus Years of Continuous Innovation

ESI has been supplying top quality downstream extrusion equipment to fortune 500 companies since 1981.

Product Line: Rubber

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Custom In-line Fabrication

Since it’s inception in 1981, ESI has specialized in on-line fabrication. While the Accupunch series has been available since the early days, ESI is constantly evolving the capabilities of the series. ESI has supplied Accupunches with up to five fabrication presses (some equipped with programmable product features and often mounted in multiple planes), routing systems, drilling systems, sawing systems. ESI has also supplied many variations of boosting fabrication ...

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Salt Tanks

ESI offers conveyorized, cascade or submersion salt tanks for vulcanization of rubber compounds. The recommended conveyance method depends on the characteristics of the extrudate. Conveyorized tanks are recommended for delicate profiles, which will stretch if pulled from downstream, such as wiper blade elements. A stainless steel conveyor belt is mounted within the salt tank to carry the extrudate down-line, under the belt, with minimum pulling tension, driven on two large grooved steel pulley rolls (one at each end). Conveyor belt tensioning is automatically controlled within each tank by means of an air cylinder, which compensates ...

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Hot water wash tank

ESI's hot water wash tanks are used to remove excess salt from salt cured rubber profiles. Because the salt solidifies immediately when touched with cold-water, hot water sprayed with special high velocity nozzles is used. Tanks can be supplied in various lengths and with one or more zones. Multiple zone hot water washes are fitted with a cascading water system so that the cleanest water is used in the downstream section and the salt concentration increases in each zone closer to the salt tank. Special electric heaters, mounted to the exterior of the reservoir are utilized to avoid heater failure due to salt buildup.

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IR Heating Channel

ESI's IR heating channel can be used for pre-heating of rubber and plastic profiles and hoses. These ovens feature high heating efficiency, digital temperature control, clam-shell opening for easy string-up and tubular steel frames. Entry and exit guide rollers are fitted. Various lengths and heating capacities can be supplied and external IR temperature sensing and control, multi-zone temperature control and heater cutoff options to avoid fires are available.

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SD-Series Belt Puller

ESI SD series pullers are a perfect choice for small profiles and tubing with lower pull force requirements as well as high-speed applications. Rubber coated timing belts are utilized providing "zero slip" with the drive pulleys. SD series offer adjustable belt height and are available with numerous belt materials, drive choices and speed ranges.

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Servo Cutter

For higher performance cutting applications, our servo driven flycutters are available with a variety of cutting torques and speeds. Brushless servomotors, directly coupled to the machined blade holder, drive these cutters. Since no friction wear surfaces such as clutch or brake assemblies are utilized, continuous adjustment or replacement to insure accuracy is a thing of the past. The base servo control provides for 'on-demand' cutting with simple operation through the standard interface. ASC servo cutters are also available with automatic camming allowing non continuous flyknife motion up to 1000 cuts per minute and continuous cutting up to 1400 ...

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Boosting Saw with ASC (Advanced Servo Control)

ESI servo boosting (traveling) saws, for rigid extrudates, incorporate moving saw tables mounted on linear rails. ESI servo boosting saws provide superior cut length accuracy control by utilizing high resolution encoders in conjunction with a servo-motor and precision ball screw assembly. ESI servo saws have proven to produce in-line cut length accuracy of +/- .020". Models are available in either single strand or dual up configurations.  ESI also provides numerous choices in blade diameter, saw motor sizes, saw platform and control packages.

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Coilers

ESI coilers are available in single or dual station designs. When two coiling stations are provided, operator switches stations when one reel is full while other station is coiling. Coilers can be supplied with traverse mechanisms for layering extrudate side by side on a wide reel or without traverse for strip winding applications. Mechanical traverses are driven by the main coiler drive and allow the operator to mechanically adjust the ratio on the traverse mechanism. Upgraded electronic traverses are also available which incorporate a separate drive motor, which is electronically ratioed to the main coiler drive. Coilers are supplied with dancer mechanisms ...

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Triple Servo Puller-Cutter

Combines industry leading cut length accuracy with a robust machine platform providing unmatched reliability and precision for inline and offline cut to length applications.  Our cutting-edge omniscient motion controls package is spearheaded by independent directly driven servomotors and intelligent drives for each puller belt and for the fly knife cutter.  This paramount flycutter has been used extensively for applications which demand critical cut length tolerances with coordinated automation such as: automatically adjusting individual cut lengths in response to feature locations sensed by vision systems, locating multiple cuffs in corrugated tubing, trimming cuff length while tracking multiple different parts, and separating into different bins off the packing conveyor.

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Air Boosting Saw

ESI air boosting (traveling) saws, for rigid extrudates, incorporate moving saw tables mounted on linear rails. Saw table is matched to line speed through a clamping cylinder and air cylinder assist. ESI also provides numerous choices in blade diameter, saw motor sizes, saw platform and control packages.

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