{"product_id":"castair-rubber-cushion-base-mount-100mm-double-cup-rcbm100dc","title":"Castair Rubber Cushion Base Mount 100mm Double Cup - RCBM100DC","description":"\u003ch2\u003eCastair Rubber Cushion Base Mount 100mm Double Cup (RCBM100DC)\u003c\/h2\u003e\n\n\u003cp\u003eThe Castair RCBM100DC is a 100mm rubber cushion base mount in the double-cup (DC) configuration. Rubber vibration mounts are a non-negotiable part of a properly installed air compressor — they isolate compressor vibration from the floor and from the shop structure, reducing noise transmission, preventing floor fatigue cracking over time, and protecting both the compressor frame and your building from cumulative vibration stress.\u003c\/p\u003e\n\n\u003cp\u003eThe double-cup (DC) design uses rubber bonded between two metal cups — the inner cup bolts to the compressor base, the outer cup contacts the floor. This configuration provides both compression and shear isolation, giving more effective vibration damping compared to a simple flat rubber pad. The 100mm designation refers to the mount diameter. Specific load rating, bolt pattern, and maximum load specifications for the RCBM100DC were not available from manufacturer pages at time of writing — contact us at 866-217-0063 for confirmed specs if you are sizing mounts for a specific compressor application.\u003c\/p\u003e\n\n\u003ch3\u003eMount Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e RCBM100DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 100mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Double Cup (DC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber bonded to steel cups\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Air compressor vibration isolation — base mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoad rating and bolt pattern:\u003c\/strong\u003e Contact 866-217-0063 for confirmed specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDouble Cup vs. Heavy Duty — Which Mount Do You Need?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM100DC (this part):\u003c\/strong\u003e 100mm, double-cup — standard vibration isolation for mid-size compressors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM100HU:\u003c\/strong\u003e 100mm, heavy-duty — higher load capacity for heavier compressor frames\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM140DC:\u003c\/strong\u003e 140mm, double-cup — larger footprint for bigger base frames\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRCBM140HU:\u003c\/strong\u003e 140mm, heavy-duty — maximum load capacity in the 140mm size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor context, Castair also sells the flat VP100 rubber vibration pad (4\"x4\"x1\", sold individually as VP100 or in a set of 4 as VP1004) for standard piston compressor installations. The RCBM-series cup mounts are for applications requiring more engineered vibration isolation than a flat pad provides.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Proper Vibration Isolation Matters\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNoise reduction:\u003c\/strong\u003e Rubber mounts prevent compressor vibration from resonating through concrete floors and walls — reducing shop noise levels noticeably\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFloor protection:\u003c\/strong\u003e Rotary screw compressors run continuously. Unchecked vibration on concrete causes micro-cracking over time, particularly around anchor points\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressor longevity:\u003c\/strong\u003e Hard-mounting a compressor allows vibration energy to cycle back into the machine frame and fittings — leading to fatigue cracks in copper lines, loose fittings, and accelerated wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePiping protection:\u003c\/strong\u003e Flexible mounts allow a small amount of movement between the compressor and the fixed shop piping — this is why Castair also sells metal flex hose as a companion accessory\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse one mount per compressor foot\/base pad location — typically 4 mounts per unit\u003c\/li\u003e\n  \u003cli\u003eDo not over-torque the mounting bolts — compressing the rubber element past its rated deflection reduces isolation effectiveness\u003c\/li\u003e\n  \u003cli\u003ePair with metal flex hose (VA075, VA100, or VA125 depending on line size) between the compressor discharge and fixed shop piping to allow the mounts to work properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Castair RCBM100DC rubber cushion base mount, 100mm double-cup configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCastair authorized:\u003c\/strong\u003e OEM vibration mounts matched to Castair compressor installations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree tech support:\u003c\/strong\u003e 866-217-0063 — help sizing and selecting the correct mount for your compressor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull accessory lineup:\u003c\/strong\u003e Mounts, flex hose, ball valves, and installation kits available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342588960981,"sku":"RCBM100DC","price":78.1,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-rubber-cushion-base-mount-100mm-double-cup-rcbm100dc","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}