(function(){ // Run after DOM ready document.addEventListener('DOMContentLoaded', function() { // Helper: find the content controlled by a button function getContentForButton(btn) { const ctl = btn.getAttribute('aria-controls'); if (ctl) return document.getElementById(ctl); // fallback: look for sibling/menu-content return btn.closest('.e-n-menu-item')?.querySelector('.e-n-menu-content') || null; } // Close a single button/menu function closeButton(btn) { const content = getContentForButton(btn); if (content) content.style.display = 'none'; btn.setAttribute('aria-expanded', 'false'); btn.classList.remove('e-n-open'); btn.closest('.e-n-menu-item')?.classList.remove('e-n-open'); const opened = btn.querySelector('.e-n-menu-dropdown-icon-opened'); const closed = btn.querySelector('.e-n-menu-dropdown-icon-closed'); if (opened) opened.style.display = 'none'; if (closed) closed.style.display = ''; } // Open a single button/menu function openButton(btn) { const content = getContentForButton(btn); if (!content) return; // let CSS pick the display where possible; otherwise force block content.style.display = ''; if (getComputedStyle(content).display === 'none') content.style.display = 'block'; btn.setAttribute('aria-expanded', 'true'); btn.classList.add('e-n-open'); btn.closest('.e-n-menu-item')?.classList.add('e-n-open'); const opened = btn.querySelector('.e-n-menu-dropdown-icon-opened'); const closed = btn.querySelector('.e-n-menu-dropdown-icon-closed'); if (opened) opened.style.display = ''; if (closed) closed.style.display = 'none'; } // Close every menu except optional `exceptBtn` function closeAll(exceptBtn) { document.querySelectorAll('.e-n-menu-dropdown-icon[aria-expanded="true"], .e-n-menu-dropdown-icon.e-n-open') .forEach(btn => { if (btn === exceptBtn) return; closeButton(btn); }); } // Toggle function toggleButton(btn) { const isOpen = btn.getAttribute('aria-expanded') === 'true' || btn.classList.contains('e-n-open'); if (isOpen) closeButton(btn); else { closeAll(btn); openButton(btn); } } // Use event delegation so this works even if the menu is injected later document.addEventListener('click', function(e) { const btn = e.target.closest('.e-n-menu-dropdown-icon'); if (btn) { e.preventDefault(); e.stopPropagation(); // avoid immediate document click close toggleButton(btn); return; } // Click outside any menu item -> close all if (!e.target.closest('.e-n-menu-item')) { closeAll(); } }, true); // Also allow Escape to close menus document.addEventListener('keydown', function(e) { if (e.key === 'Escape') closeAll(); }); // Optional: handle touchstart to make mobile feel snappier document.addEventListener('touchstart', function(e) { const btn = e.target.closest('.e-n-menu-dropdown-icon'); if (btn) { e.stopPropagation(); toggleButton(btn); } else if (!e.target.closest('.e-n-menu-item')) { closeAll(); } }, {passive: true}); }); })(); .e-n-menu-item .e-n-menu-content { display: none; } /* optional visual class when open */ .e-n-menu-item.e-n-open > .e-n-menu-content { display: block; }
Contact Us
Swiss Rotors

SWSI Fan Impellers

SR-FI Range

Our factories

Local production and testing. Full production and delivery traceability. Competitive pricing, fast order fulfillment.

Robotic Impeller Manufacturing

Fully repeatable Laser welding

Design

Why SR-FI…

Fully assembled EC Fan Set

Aluminum Fan Impellers

SR-FI-A range

  • Single Inlet, Single Width (SWSI)
  • Backward Curved, Aerofoil Blades
  • No. of Blades: 7

Laser Welded

  • Unified Weld Shape
  • Minimum heat gains – no local deformations
  • Minimum Runout – easy balancing with minimum mass corection

Variety of Sizes

  • 225 to 630 mm

Options of Delivery

Fan Impeller

Fan Impeller + Bolt on Hub

Fan Impeller + Bolt on Hub + Taper Lock Bushing

Taper Lock Bushings for NEMA Motors

1/2″

5/8″

7/8″

1-1/8″

1-3/8″

1-5/8″

and other sizes on request

Taper Lock Bushings for IEC Motors

14 mm

19 mm

24 mm

28 mm

38 mm

42 mm

and other sizes on request

SR-FI Product Catalog

FI Cascade 0001
Catalog in Imperial Units
Catalog in Metric Units

Swiss Rotors

Swiss Rotors Inc.
1075 Highway 124 Building 300, Suite 300
Hoschton, GA 30548
United States of America

Products

SFC 21-83 Energy Recovery Wheels

RT 21-83 Energy Recovery Wheels

RT 500-2400 Energy Recovery Wheels

Core Heat Exchangers

EC Fans

EC Motorized Impellers

Helpful links

Documents

Selection software

General Terms & Conditions of Sale, Swiss Rotors sp. z o.o.

Claim form

Whistleblower Reporting Form

General Terms and Conditions for Suppliers

Ogólne Warunki Współpracy dla Dostawców

Company

About us

Insighs

Contact us

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