Indexing Dial Multiple Piece Assembly Machine

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.

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.

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 Inspection
24 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