The company Ermanno Balzi S.r.l. has been manufacturing components and accessories for moulds since 1995. It boasts of a consolidated experience in the construction of moulds for plastic materials and designs new solutions for these types of components with the aim to:
External plugs are based on rapid plug and unplug technology, which simplifies and speeds up the machining of seats and the assembly and disassembly of mold cooling components.
Pressure resistance is guaranteed up to 100 bar, with sealing ensured by FKM O-rings. For demanding applications where standard FKM materials may fall short, special compound options are available, offering improved resistance to extreme temperatures and aggressive media.
Set F plugs are recommended when the required dimensional tolerance (0 / +0.1 mm) is met and the surface quality is sufficient to ensure effective sealing with the O-ring. Under these ideal conditions, Set F plugs provide a fast, efficient, and highly reliable sealing solution.
Standard plugs should be used when the required tolerance is not achieved or the surface finish is inadequate to support proper O-ring sealing. These plugs are designed to compensate for minor dimensional or surface imperfections, ensuring a secure seal even in less-than-ideal conditions.
Diverting plugs
can easily be fixed inside cooling channels by use of the proper tool. The rapid fitting technology guarantees mechanical and hydraulic sealing with oversized holes of up to +0.4 mm. Unscrewing and extraction procedures are also very easy to perform. Maximum working pressure changes according to the diameter of the plug, we advise applying the proper torque forces specified in the technical specifications. In order to increase the maximum working pressure with a plug diameter over 16 mm it is necessary to machine a groove inside the channel where the elastic metal ring of the plug fits. A special tool able to perform such machining is available.
In-parallel bubbles are based on rapid plug and unplug technology, which simplifies and speeds up the machining of seats and the assembly and disassembly procedures of mold cooling components.
Their design allows parallel feeding of multiple cooling pipes, which helps maintain a stable temperature of the heat transfer medium. Thanks to a broad dimensional range, a standard solution is available to fit nearly any application.
Set F bubbles are recommended when the cooling channel meets the required dimensional tolerance (0 / +0.1 mm) and the surface quality is sufficient to ensure proper sealing of the O-ring. Under these conditions, Set F bubbles offer quick installation and reliable performance.
Standard bubbles should be used when the required tolerance is not achieved or the surface finish is inadequate. These standard versions compensate for deviations and help maintain sealing integrity in less optimal machining conditions.
In-series bubbles are based on rapid plug and unplug technology, which simplifies and speeds up the machining of seats and the assembly and disassembly procedures of mold cooling components.
The special design of the bubble allows for a single port to function as both the inlet and outlet for the heat transfer medium, offering a space-saving and efficient cooling solution. With a broad dimensional range available, a standard configuration can be selected to meet most application needs.
Set F bubbles are recommended when the cooling channel meets the required dimensional tolerance (0 / +0.1 mm) and the surface quality is sufficient to ensure proper O-ring sealing. Under these precise conditions, Set F bubbles provide optimal sealing performance and rapid installation.
Standard bubbles should be used when the required tolerance is not achieved or the surface finish is inadequate. These are designed to ensure sealing integrity even when machining deviations are present.
Straight baffles are based on rapid plug and unplug technology, which simplifies and accelerates the machining of seats as well as the assembly and disassembly of mold cooling components.
Thanks to a broad dimensional range, a suitable standard solution is available for a wide variety of cooling applications, enabling efficient temperature regulation and reliable installation.
Set F baffles are recommended when the cooling channel meets the required dimensional tolerance (0 / +0.1 mm) and the surface quality is sufficient to ensure effective O-ring sealing. This version allows for fast and secure installation under optimal conditions.
Standard baffles should be used when the required tolerance is not achieved or the surface finish is insufficient to guarantee proper sealing. These baffles are designed to accommodate machining imperfections while still maintaining sealing reliability.
Spiral baffles are based on rapid plug and unplug technology, which simplifies and speeds up the machining of seats as well as the assembly and disassembly of mold cooling components.
The spiral flow pattern ensures a uniform temperature distribution across the entire surface and promotes turbulent flow, which significantly improves heat release and cooling efficiency. With a broad dimensional range available, a suitable solution can be found for nearly every cooling application.
Set F baffles are recommended when the cooling channel meets the required dimensional tolerance (0 / +0.1 mm) and the surface quality is sufficient to ensure effective O-ring sealing. Under these precise conditions, Set F offers quick installation with high sealing performance.
Standard baffles should be used when the required tolerance is not achieved or the surface finish is inadequate. These baffles are designed to maintain sealing integrity even in less-than-ideal machining conditions.
Set F baffles are recommended when the cooling channel meets the required dimensional tolerance (0 / +0.1 mm) and the surface quality is sufficient to ensure effective O-ring sealing. This version allows for fast and secure installation under optimal conditions.
Standard baffles should be used when the required tolerance is not achieved or the surface finish is insufficient to guarantee proper sealing. These baffles are designed to accommodate machining imperfections while still maintaining sealing reliability.
Internal baffles can be easily fixed inside the cooling channel by use of the proper tool. The rapid fitting technology allows ease of extraction, mechanical fixing and hydraulic sealing in oversized holes of up to 0.4 mm. Internal baffles were designed for large molds to reduce the baffle length and to optimize the thermal conditioning.
Maximum working pressure changes according to the diameter of the baffle, we advise applying the proper torque forces specified in the technical specifications. In order to increase the maximum working pressure with baffles diameters of over 16 mm it is necessary to machine a groove inside the channel where the elastic metal ring of the baffle will fit. A special tool able to perform such machining is available.
The self-locking baffles with spring allow to easily and effectively place a partition blade in a cooling channel. Locking the blade properly against rotation and along the axis of the hole is allowed by the spring pressure exerted against the surface of the hole.
Thanks to the broad dimensional range you will find the standard solution that fits your application.
Self-locking baffles with spring allow for easy and effective placement of a partition blade in a cooling channel. Locking the blade properly against rotation and along the axis of the hole is allowed by the spring pressure exerted against the surface of the hole surface.
The spiral pattern ensures a uniform temperature throughout the entire surface and it also fosters a turbulent flow that allows for greater heat release.
Thanks to the broad dimensional range you will find the standard solution that fits your application.
Self-locking baffles without spring allow for easy and effective placement of a partition blade in a cooling channel. A special broaching tool smoothes the way for the creation of a seat into which the blade can be placed safely against rotation and along the axis of the hole.
Thanks to the broad dimensional range you will find the standard solution that fits your application.
Spiral self-locking baffles without spring allow for easy and effective placement of a partition blade in a cooling channel. A special broaching tool smoothes the way for the creation of a seat into which the blade can be placed safely against rotation and along the axis of the hole. The spiral pattern ensures a uniform temperature throughout the entire surface and it also fosters a turbulent flow that allows for greater heat release.
Thanks to the broad dimensional range you will find the standard solution that fits your application.
The rapid connector Ermanno Balzi is based on rapid plug and unplug technology that allows to fit directly into the cooling channel without requiring a socket inside the mold. The main benefits of the technology are the considerable simplification of the machining and the cost savings thanks to the socket elimination.
The connector bridge is based on rapid plug and unplug technology that allows to fit directly into the cooling channel without requiring a socket inside the mold. The main benefits of the technology are the considerable simplification of the machining, application, and disassembly for maintenance.
Two-Stage Ejector AS mechanically connects two plates allowing for dual ejection sequencing. The AS system guarantees easy seat machining on plates already requiring modifications and easy setting of strokes. AS technology allows for reliable application with high production tools.
The plate locks devices DS were designed to guarantee high load capacity and to be applied into medium and large size tools. Internal application guarantees easy installation with only minimal machining on plates already requiring modification. The devices are suitable for double ejection sequencing where the ejector plates move keeping reciprocal distance for the first stroke and the second stroke is performed by the lower plate. The first stroke can be set by adjusting the rod length.
The ISG mold venting insert is a modular product consisting of concentric rings properly designed to create a gap of 0.03 mm between each element. The ISG insert can be assembled and disassembled from a mold front side allowing for quick maintenance operations.
The ISGL lamellar mold venting insert is a modular product making it possible to cover various shapes and areas. The gas is vented through properly designed 0.03 mm gaps between each element.
The ISGL insert can be assembled and disassembled from mold front side allowing for quick maintenance operations.
Air valve sticking can frequently occur and cause the whole system to fill up. This may lead to challenging stops and inevitable maintenance. Thanks to the ERMANNO BALZI valve, this annoying issue can be avoided once and for all, and the standard maintenance procedure alone is enough to keep the system in full working order.
The air needle valve was developed to inject air into the cavity allowing for ejection of the part. The lockup is guaranteed during the injection phase as the needle moves backward under air pressure. Thanks to the special design the valve leaves only a small mark on the injected part and can be used in tight spaces.
Standard Slide is a unit composed system able to cover a broad dimensional range. The innovative design replaces the external guides with internal cylindrical guides allowing space saving, easy stroke extension and it is easy to connect to a hydraulic cylinder. Standard slides can be equipped with slide retaining devices.
The sliding plates with integrated retainer fully meet two compelling requirements in the development of a slider such as the precision machining of the sliding surface whose hardness and finish minimize any risk of seizure and a safe and small integrated retaining system. The integrated retainer includes a roller locking device aimed at minimizing wear, whilst ensuring a reliable locking action at the same time.
The adjustable slide retainer is a sturdy and compact product able to guarantee high loading performance and high longevity. The locking is performed with rollers aimed at minimizing wear, the special design allows for setting the locking position.
The roller slide retainer is a slider locking device that is space-saving and with a high loading capacity. The system includes a roller locking device aimed at minimizing wear and is available with various load capacities.
The lifters CAM are a simple and effective solution to release undercuts in injection molds. The movement of the blade is completely mechanical and guarantees high reliability, the DLC coating ensures low wear and self-lubricating function. Both body and blade can be machined to get the required geometry.
Special sizes and double layout are available on demand.
The mechanical collapsible cores are made of an inner core and some segments connected by a properly designed guiding system. During the ejection phase the segments slide along the inner core performing a radial movement which allows to release an internal undercut. Internal undercuts on round, square or oval parts can be easily released during the ejection process. Multi start threads or a combination of right- and left-handed threads can also be released. The dimensional stability of parts injected using mechanical collapsible cores meets the highest requirements. An accuracy of ±0,02 mm can be achieved for both flatness and roundness.
The moving pin with conical closure guarantees a high gas flow rate and a self-cleaning action that dramatically reduce maintenance.
The Gas Injector works effectively at a pressure range of between 1 and 160 bar; degassing is guaranteed thanks to the precise vents on the conical closure.
The self-sealing geometry allows the application to work without O-rings or Teflon.
The cut is made with the mould closed at the end of the holding phase. At this point the polymeric material is still hot, the operation is therefore not a real cut but a movement of material.
High pressure and accurate time control are required to perform a quality cut. Our GCM Control Unit makes it possibile.
Octagon technology brings a number of advantages in the production process.
Applications with many types of materials and gates are possible.
The CPR cooling test station is an easy and effective tool to check the thermoregulation circuit hydraulic seal. It is possible to carry out the test by closing the tap that cuts off the flow circulation, allowing the pump to generate pressure inside the circuit; the pressure can be adjusted by way of a relief valve. Once the desired test pressure has been achieved the feeding tap has to be closed and the engine switched off. In such situation any leakage in the circuits immediately produces a pressure drop inside the circuit, as shown by a manometer. Once the test is over the circuit can be emptied through compressed air that pushes the liquid back into the CPR tank.
In order to verify the flow rate inside each circuit at a defined pressure it is necessary to equip the CPR with a pump and engine able to guarantee a higher flow rate. The circulating pressure will be defined by the circuit geometry and can be adjusted to reach the desired value thanks to a relief valve. In order to have a more flexible system the CPR machine can be equipped with a frequency drive system able to modify the RPM of the engine and accordingly the flow rate. Such CPR machines are equipped with a digital flow meter and with a system by-pass able to protect the flow meter while using compressed air to empty the circuit.
The CPC test station is useful equipment for testing the proper operation of hydraulic cylinders. The movement of the cylinder can be done with a manual handle, the pressure can be set according to the specific requirements.
The propensity for innovation along with manufacturing flexibility make Ermanno Balzi S.r.l. a precious partner for all mold manufacturers and users. We have always served both the national and and international markets. Thanks to our distribution network consisting of a branch in China and to our highly specialized retailers in Europe, the United States, and Asia we can provide on-site technical and commercial support for all of your requirements.
CYTECUK specializes in high-precision hydraulic cylinders, clamping systems, milling heads, and motor spindles for various industrial applications, including tool & mold making, the automotive industry, and aerospace.
Hydraulic cylinders are essential components in fluid technology, enabling precise linear movements and high forces
Core pull and locking cylinders are specialized hydraulic cylinders used in injection moulding machines for the precise movement and securing of moulds
Our products, such as air valves, sliders, and gas injectors, enhance the performance and reliability of your injection moulds
CYTEC specializes in hydraulic cylinder technology, offering advanced cylinder and clamping systems, as well as essential machine components for mold construction and machining.
The company is based in Oldham, UK, and provides solutions from CyTec, AHP Merkle, I-Mold, Servomold, Ermanno Balzi, and Feller Engineering.
ServoMold specializes in servo-electric automation solutions for injection moulds. They provide components like unscrewing devices and linear drives to enhance precision and efficiency in mould construction.
The company is based in Oldham, UK, and provides solutions from CyTec, AHP Merkle, I-Mold, Servomold, Ermanno Balzi, and Feller Engineering.
