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Karry
I cover riveting systems and their drive technologies, with an interest in the practical information needed throughout equipment ownership. My articles explain machine functions, commissioning questions, and maintenance terminology, helping readers understand how individual components contribute to the wider assembly process and support requirements.
The Clinching Process: Joint Formation, Tooling and Production Control
The clinching process is a type of metal joining method that forms a mechanical interlock with a punch and die. No additional rivet or screw is added. A useful question for production is to examine how the tooling moves the…
Sheet Metal Joint Design for Ducts, Panels and Appliance Assemblies
Sheet metal joint design defines how sheet edges meet, where loads cross the connection, and how the parts can be assembled. The first thing to consider is the shape, and then the size of the joining feature. Choose the geometry…
Sheet Metal Fastening Methods for Panels, Ducts and Enclosures
Sheet metal fastening methods are the ways in which thin metal parts are joined together to form an assembly. The main methods are screws, bolts, rivets, self-clinching hardware, blind rivet nuts, sheet-to-sheet clinching, welding and adhesive bonding. Begin with the…
Pneumohydraulic Drive Cylinders: Commissioning, Diagnostics & Maintenance Guide
Pneumohydraulic drive cylinders are best diagnosed as a timed cycle, not as a single force number. In a typical arrangement, compressed air moves the actuator quickly, an intensified oil circuit supplies the short working stroke, and the system then returns…
Servo Riveting Assembly Systems: How Self-Piercing Rivet Automation Works
Servo riveting assembly systems are automated joining machines that connect sheet-metal stacks by driving a rivet through the top layer, then flaring it into the bottom layer under closed-loop servo-motor control, with no pre-drilling or added heat. The process is…
Riveting Equipment for Elevator & Rail Transit: A Buyer-Education Guide
Quick Specs Common processes Self-piercing rivet (SPR), blind rivet, orbital rivet, lockbolt Typical actuation Manual, pneumatic, hydraulic, servo-electric Example force envelope 80 kN / 200 mm stroke / 0-333 mm/s (servo riveting class) Applicable OSHA baseline 29 CFR 1910.212 (general…
Choosing a Clinching Machine for HVAC and Home Appliance Assembly
Clinching machines for HVAC & home appliance assembly are selected by eliminating configurations that fail the part’s material, access, production, or acceptance requirements. Start with the finished assembly rather than a press catalog. Record the sheet grade, coating, thickness of…
How Pneumatic and Servo Clinching Press Drives Change Process Control
Updated August 2026 For product-family context, see SIMITCH pneumohydraulic drive cylinders. Pneumatic & Servo Clinching Presses are often compared as if the drive label decides joint quality. It doesn’t. Drive architecture changes how force and motion are produced, what variables…
Portable Clinching Machine Maintenance for Stable Joint Quality
Updated August 2026 · Maintenance and quality guide By Suzhou Simitch Machinery Co., Ltd. Portable clinching machine maintenance is most effective when treated as an evidence routine: preserve the approved tool and material setup, inspect the mobile installation, verify the…
Clinching Machines & Equipment: Process, Tooling, and Joint Approval
Updated July 2026 Quick Decision Inputs Part evidence Drawing, joint locations, access envelope, support points Material evidence Grade, thickness order, coating, temper, surface condition Production evidence Joint count, cadence, changeovers, utilities, data interfaces Approval evidence Section geometry, mechanical tests, process…
