Indexing dial multiple-piece assembly machines provide dwell time which allows for multiple, complex operations to be preformed accurately and typically at a lower cost than continuous motion machines. Central Machines is experienced with creating indexing machines that can perform operations such as assembly, testing, inspection, heat staking, ultra-sonic welding and flash trimming during this important dwell time. Operations such as electrical connector and component assembly, as well as other assemblies from ink jets to baby bottles can all be performed on our index machines.

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Another advantage of these machines is their functional flexibility. They can assemble and perform operations on parts that would be too large for continuous motion machines. Once our design team determines your production needs, we will recommend the best solution to fit your functional and financial criteria. Because each customer is different, we offer a long list of options from inline vibratory or centrifugal feeders to defective part sensors to multiple machine integration.

From each and every machine our customers can expect longevity and reliability due to our use of mechanical and servo driven motions. Our skilled work force is all under one roof, allowing for the complete construction, and product accountability, within our shop. We use both conventional and state-of-the-art CAD/CAM and wire EDM machines to fabricate the components.

Our machines are user friendly and programmable. A color display touch screen panel is the primary user interface. Using the touch screen, the equipment can be programmed to run different jobs. Operators need only to enter a part number into the touch screen and the machine will access its local data base to start producing the part.

We performance-test, debug, and install all the equipment that we build. Our skilled personnel provide phone support, on-site maintenance and servicing support. Lastly, we provide training on equipment installation and usage.

  • Capabilities
    Machine Shop CapabilitiesBuffing
    CNC Machining
    Wire EDM Machining
    Custom Services24/7 Service
    Complete Machine Programing
    Custom Build Manufacturing
    Functional Testing
    Innovative Machine Design
    Installation At Your Location
    Retooling and Upgrades of our machines and our competitor’s machines
    Stand Alone Machines
    Training Your Staff
    Turnkey Systems
    Wiring and Assembly
    Fabrication Materials Used For
    Building Chassis and Tooling
    Aluminum: 6061, 2024
    Cold rolled steel bar and plate stock; 1008,1018, 1020
    Heat Treatment of Materials Available if Necessary
    Sheet Metal (8-14 gauge)
    Stainless Steel : All grades
    Tool Steel: CPM, 10V, D2, A2, M2
    TolerancesOperating Placement: +/- .002
    Tooling tolerance: +/- .001
    Sensor CapabilityVerify product has no defects
    Verify Product was assembled correctly
    Verify Product was loaded into the dials
    Verify that products with defects are removed
    Core CompetenciesCap Closing Machines w/ max. 550 ppm
    Cap Lining Machines w/ max. 1200 ppm
    Continuous Motion Assembly Machines w/ max. 1300ppm
    High Speed Indexing Assembly Dial w/ Typical min. 25 ppm to max. 150 ppm.
    Walking beam-type transfer systems
  • Design Options
    Feed SystemsVibratory feeders
    Centrifugal feeders
    Water fall feeders
    Step feeders
    In Feed SystemsPower driven conveyors tracks
    Regenerative blower tracks
    Compressed air tracks
    Vibratory inline tracks
    Product Transfer to Assembly or Test ProcessesDirect feed
    Cam / servo / pneumatic driven pick and place units
    Servo / pneumatic driven gantries
    Cam / servo / pneumatic driven shuttles
    Product Placement DetectionSee through fiber optic sensors
    Convergent beam sensors
    Laser sensors
    Probe tooling with sensors
    Product Assembly TypesSnap together
    Interference fit
    Ultra sonic welding
    Heat staking
    Spin welding
    Induction welding
    Conduction welding
    Product Assembly TestingVision system inspections
    Probe tooling with sensors
    Laser sensors
    Leak testing (pressure or vacuum)
    Spark testing
    Hi- Pot electrical high voltage testing
    Go / No go tooling gages
    LVDT force testing
    Automatic ejecting of product to sampling bins
    Product IdentificationLaser engraving
    Ink jet printing
    Pad printing
    Pin stamping
  • General Machine Description
    The Indexing Dial Multiple Piece Assembly Machine is based on Central Machines standard dial-indexing platform with cam driven pick & place units mounted in board of the assembly dial to provide good accessability to the individual stations.

    The machines include the following standard features:

    • A Precision Indexer with precision stops will drive the tooling dial plate.
    • Piece part fixtures mounted to the indexing dial plate will transport product between stations.
    • Feeder bowls to orient product.
    • In-feed tracks to transfer the product to the pick and place escapements.
    • Precision cam driven pick and place devices that transfer product from the escapements to the fixture nest.
    • Off load conveyor to transfer assemblies to a two position box diverter.
    • Fixture tracking system will monitor good and bad parts thru the system.
    • Touch screen operator interface with message display.
    • Mechanical and Electrical operating manuals.

    Each station is mounted on identical station plates for added flexibility, and is constructed with tooling mounted to a ground steel top plate supported by a fabricated steel base. Mechanical, pneumatic and electrical equipment are group mounted on the base. Electrical controls are mounted in NEMA 12 style enclosures and all tooling will be hardened and ground. Machine components can be anodized, plated, or painted as necessary. Pinch points and rotating sections will be guarded to prevent operator injury. Perimeter guarding is electrically interlocked and fabricated with clear polycarbonate panels and extruded aluminum.

  • Inspection & Testing
    Functional Testing and Inspection24 hour non-stop dry run test
    Electrical test on connectors: Hypot test
    Multi stage load test
    Standard Checklist
    Project Completion Internal Check ListControl Panel Wiring and function
    Correct Preparation for Shipment
    Electrical Engineering Documentation
    Guarding and Saftey
    Mechnical Assembly
    Mechnical Engineering Documentation
    Pneumatic Wiring
    Proper Lubrication
  • Engineering & Services
    CAD Software UsedAutodesk Inventor
    Automation simulation using CAD designing software
    Process Development
    Custom Services24/7 Service
    Complete Machine Programing
    Custom Build Manufacturing
    Functional Testing
    Innovative Machine Design
    Installation At Your Location
    Retooling and Upgrades of our machines and our competitor’s machines
    Stand Alone Machines
    Training Your Staff
    Turnkey Systems
    Wiring and Assembly
  • Additional Options
    Pre FeedersElevator hoppers
    Vibratory hoppers
    Live bottom hoppers
    Pack Out SystemsCarton handling systems with powered or roller conveyors
    Robotic packaging
    Two position carton diverters
    Operator InterfaceTouch screen with machine diagnostics and data acquisition
    Push button
    Message display units
    Placard displays