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Longvista – Fertigung

Custom process sensor technology, frequency inverters and IIoT monitoring with Swiss pre-dispatch inspection from Caslano.

Longvista Logo

Longvista Sagl

6987 Caslano (Ticino, Switzerland)New on Amplifa

CHE-140.807.475Commercial Register Canton Ticino
Caslano, TicinoLocation
Long Shao (over 20 years of experience)Management
Delivery of custom adaptations in 2–3Lead times
Switzerland, Germany, Italy andDelivery countries

About Longvista

Longvista Sagl is a company specialised in industrial automation, based in Caslano in the canton of Ticino. The company supplies custom-adapted process sensor technology (ultrasonic and capacitive level sensors, pressure and flow measurement), frequency inverters and ATEX-certified wireless IIoT components for predictive maintenance. Its core service is adaptation to customer-specific mechanical and electrical specifications: custom process connections (G-, NPT threads, flanges), special materials such as PVDF and stainless steel 316L, custom cable lengths and signal output configurations (4–20 mA, RS485, Modbus RTU). In small-series and prototype production, modified sensor housings, thread adapters, cable harnesses and process fittings are manufactured; specific turning and milling operations are coordinated. Every unit undergoes a signal, pressure or calibration test in Caslano before dispatch, including complete CE, RoHS and material test documentation. Customers include industries such as HVAC, water and wastewater engineering, food processing, energy supply, heavy machinery, shipping and chemicals in Switzerland, Germany and Italy.

Site
Caslano
Processes
Custom mechanical & electrical fitting (special process connections, G/NPT/flanges, special, Pre-dispatch Swiss inspection (signal/pressure/calibration testing before dispatch), Small-to-medium batch manufacturing of modified sensor bodies, thread adapters, custom cable, Custom machining coordination (outsourcing of customer-specific machining), Custom process connections (G-, NPT threads, flange, PVDF, 316L), Preconfigured sensor technology and VFD parameterisation, Swiss pre-dispatch inspection (signal, pressure, calibration testing) in Caslano, Complete documentation (CE, RoHS, material test reports, wiring guides)
Materials
PVDF, Stainless steel 316L, Stainless steel 304, PTFE coating, Aluminium alloy, Hastelloy, Frequency inverter technology (INVT)
Certificates
CE conformity (documentation per delivery), RoHS conformity (documentation per delivery), ATEX (named IIoT components), CE conformity, RoHS conformity, ISO 9001
Industries
HVAC, Pump and water technology, Wastewater treatment, Food processing, Energy supply, Heavy machinery / construction machinery
  1. 01

    Technical consulting and engineering assessment directly by engineers

  2. 02

    Adaptation of process connections, materials and signal technology

  3. 03

    Coordination of custom machining (thread adapters, modifications)

  4. 04

    Small-series and prototype production (sensor housings, cable harnesses,

  5. 05

    Pre-configuration and VFD parameterisation (4–20 mA, Modbus RTU)

  6. 06

    Pre-dispatch inspection in Caslano (signal, pressure, calibration, thread

  7. 07

    Documentation (CE, RoHS, material test reports, wiring guides) and

Materials & Processes

PVDF

PVDF

Chemically resistant body material of pressure transmitters for aggressive media in chemical applications.

316L

Stainless steel 316L

Corrosion- and chemically resistant wetted material for process connections and sensor diaphragms.

1.4301

Stainless steel 304

Material for probe rods of capacitive level sensors with high corrosion resistance.

PTFE

PTFE coating

Hydrophobic, corrosion-resistant coating for measuring probes in aggressive and sticky media.

Al

Aluminium alloy

Lightweight, rigid material for field-cuttable probe rods.

Hastelloy

Hastelloy

Special material for pressure sensor diaphragms in aggressive media.

VFD

Frequency inverter technology (INVT)

230V/400V inverters with preconfigured parameters for pumps, fans and compressors.

Locations

Standort Caslano

Caslano

CH

Headquarters, sales, adaptation and pre-dispatch inspection facility

Lot size
Prototypes and small series up to medium series
Materials
PVDF, stainless steel 316L/304, aluminium, PTFE
  • Testing equipment for signal, pressure and calibration testing
  • Pre-configuration systems for sensor electronics and VFD parameterisation
  • INVT GD350A and GD20 frequency inverters
  • Capacitive level sensors SFLS500/SLS605

Components & Products

Radar level sensor with inspection
Radar level sensor with inspectionSensor adaptation · Water and process industries
Ultrasonic level transmitter
Ultrasonic level transmitterLevel measurement technology · Shipping / water infrastructure
Capacitive level sensor SFLS500/SLS605
Capacitive level sensor SFLS500/SLS605Fuel, oil and process monitoring · Heavy machinery
INVT GD350A frequency inverter with expansion cards
INVT GD350A frequency inverter with expansion cardsDrive control · HVAC and pump technology
Wireless IIoT ecosystem WS30M-ZH and SI500
Wireless IIoT ecosystem WS30M-ZH and SI500Predictive maintenance · Industry 4.0
Aeration blower with VFD control
Aeration blower with VFD controlFrequency inverter application · Wastewater treatment plants
Agitator in wastewater treatment plant
Agitator in wastewater treatment plantPump and blower control · Wastewater engineering

Inside the production

Wastewater treatment plant – application area of process sensor technology and
Wastewater treatment plant – application area of process sensor technology and
INVT GD20 frequency inverter, 0.37 kW
INVT GD20 frequency inverter, 0.37 kW
INVT GD20 frequency inverter, 0.75 kW
INVT GD20 frequency inverter, 0.75 kW
INVT GD20 EU product packaging
INVT GD20 EU product packaging

Industries

HVACPump and water technologyWastewater treatmentFood processingEnergy supplyHeavy machinery / construction machineryShippingMechanical engineering / OEMChemicalsPump and water technology / water infrastructureWastewater treatment / sewage treatment plantsShipping (Lake Constance / Swiss lake passenger ships)

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Custom mechanical & electrical fitting (special process connections, G/NPT/flanges, specialEngineering––––PVDF, Stainless steel 316L
Pre-dispatch Swiss inspection (signal/pressure/calibration testing before dispatch)Testing–––––
Small-to-medium batch manufacturing of modified sensor bodies, thread adapters, custom cableAssembly–––––
Custom machining coordination (outsourcing of customer-specific machining)MachiningThread tolerance checked––––

4 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
INVT GD350A frequency inverterINVT GD350A–230V/400V, expansion cards from 7.5 kW–Caslano
INVT GD20 frequency inverterINVT GD20-0.37kW–0.37 kW–Caslano
Capacitive level sensor series SFLS500Longvista (Macsensor) SFLS500–-50 to +125 °C, max. 0.6 MPa, IP68–Caslano
Capacitive level transmitter series SLS605Longvista (Macsensor) SLS605–-40 to +150 °C, max. 2.5 MPa, IP68/IP67–Caslano

Additional services

Custom process connections (G-, NPT threads, flange, PVDF, 316L)Preconfigured sensor technology and VFD parameterisationSwiss pre-dispatch inspection (signal, pressure, calibration testing) in CaslanoComplete documentation (CE, RoHS, material test reports, wiring guides)Small-series and prototype production (thread adapters, cable harnesses, fittings)Technical consulting directly by engineersPredictive maintenance / wireless IIoT monitoring

Reference customers

Shiptec AGCustomer in Glatten, Germany (machine manufacturer, PVDF pressure transmitters)

Quality & Documentation

Every unit undergoes a signal, pressure or calibration test in Caslano before dispatch, mechanical inspection (thread tolerance, seal integrity, housing dimensions) and, as standard, receives complete documentation with CE declaration and RoHS certificate. The named IIoT components are ATEX-certified.

EvidenceCaslano
CE conformity
RoHS conformity
ATEX (named IIoT components)
ISO 9001

History

  1. 2022

    First publication of the website (18 January 2022).

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