{"product_id":"cat-self-leveling-airbag-pallet-carousel-skid-positioner-wb641679","title":"Cat® Self-Leveling Airbag-Operated Pallet Carousel Skid Positioner WB641679, 43\" Dia","description":"\u003ch2\u003eCat® Airbag-Operated Pallet Carousel Features\u003c\/h2\u003e\n\u003cp\u003eEngineered for distribution centers, manufacturing pack-out lines, and fulfillment operations where pallet load weights vary significantly within a shift, the Cat® self-leveling \u003cstrong\u003epallet carousel\u003c\/strong\u003e skid positioner (WB641679) uses a captive reinforced rubber Firestone airbag to maintain an ergonomic working height as layers are added or removed. A 43-inch turntable with a secured ball bearing center pivot delivers smooth 360° rotation, and rollers entrapped in the base frame and platform provide exceptional lateral stability. Initial inflation to 60 PSI is all that is required — the Cat® WB641679 is fully self-contained during operation with no constant air supply needed.\u003c\/p\u003e\n\u003cp\u003eFor facilities comparing the Cat® airbag and spring models, the WB641679 provides additional raised height (29-13\/16 inches vs. 27-3\/4 inches) and smoother leveling across highly variable load weights. Steel construction with phosphatized powder-coat handles continuous industrial use, fork pockets allow forklift relocation, and the Cat® Portability Package WB641681 — sold separately — converts the carousel to one-operator mobile for workstations without forklift access.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; margin: 1em 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; background: #f5f5f5; text-align: left; font-weight: 600;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; background: #f5f5f5; text-align: left; font-weight: 600;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCat®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eWB641679\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eTurntable Diameter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e43\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eRotation\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e360° on secured ball bearing center pivot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eLeveling System\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCaptive reinforced rubber Firestone airbag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eRaised Height\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e29-13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eInitial Air Required\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e60 PSI (one-time inflation; self-contained after)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eConstant Air Supply\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eNot required — self-contained once inflated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eRoller Design\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eRollers entrapped in base frame and platform for added stability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eDurable steel with phosphatized powder-coat finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eForklift Transport\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFork pockets for facility relocation by forklift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCompatible Accessory\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCat® Portability Package WB641681 (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eErgonomic and Compliance Applications\u003c\/h2\u003e\n\u003cp\u003eTo reduce repetitive motion injuries and meet OSHA ergonomic guidelines at pallet handling workstations, the Cat® WB641679 is deployed in high-volume fulfillment and distribution centers where load weights vary by SKU, food and beverage production pack-out lines where layer weight is inconsistent, pharmaceutical and medical device packaging lines requiring precise working height tracking, and automotive parts assembly operations where mixed-part pallets require smooth height adjustment across the full load range.\u003c\/p\u003e\n\u003ch2\u003eCat® Airbag Carousel vs. Typical Competitor\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; margin: 1em 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; background: #f5f5f5; text-align: left; font-weight: 600;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; background: #f5f5f5; text-align: left; font-weight: 600;\"\u003eThis Product\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px 12px; background: #f5f5f5; text-align: left; font-weight: 600;\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eCat® — global material handling standard\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eUnbranded or generic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eLeveling System\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFirestone airbag — industry-proven\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eGeneric bag or spring only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eRaised Height\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003e29-13\/16\" — higher working position\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eOften 20–26\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eConstant Air Required\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eNo — self-contained after 60 PSI initial\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eOften requires constant air line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFrame Stability\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eRollers entrapped in base + platform\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFree-rolling casters only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003ePricing\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eBelow retail pricing\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 12px;\"\u003eFull retail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAcademic and Institutional Pricing\u003c\/h2\u003e\n\u003cp\u003eLabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow does the Cat® airbag-operated pallet carousel self-leveling system work?\u003c\/h3\u003e\n\u003cp\u003eA captive reinforced rubber Firestone airbag inside the Cat® WB641679 chassis expands or contracts as layers of product are added or removed, raising and lowering the 43-inch turntable platform to maintain an ergonomic working height. When weight is added, bag pressure increases and the platform rises; when weight is removed, pressure drops and the platform follows the load down. Pneumatic self-leveling delivers smoother, more linear height adjustment across a wider load range than spring-actuated systems, making the WB641679 preferred for highly variable loads.\u003c\/p\u003e\n\u003ch3\u003eDoes the Cat® WB641679 require a constant compressed air supply?\u003c\/h3\u003e\n\u003cp\u003eNo. The Cat® airbag-operated carousel is self-contained after initial inflation. An air compressor is needed once to inflate the Firestone airbag to 60 PSI at setup, and again anytime air is manually released from the carousel during servicing. During normal operation — loading and unloading cycles — the airbag maintains pressure automatically without any external air line connected. This self-contained design means the Cat® WB641679 can be deployed at any workstation in a facility without access to a permanent air supply.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the Cat® WB641679 airbag and the Cat® WB641680 spring-actuated carousel?\u003c\/h3\u003e\n\u003cp\u003eBoth Cat® carousels provide 360-degree turntable rotation, ergonomic self-leveling, and compatibility with the Cat® Portability Package. The WB641679 airbag model uses a Firestone captive rubber airbag, reaches a raised height of 29-13\/16 inches, and is preferred where load weights vary significantly within a shift. The WB641680 spring model reaches 27-3\/4 inches and requires no initial air charge — it is the simpler, zero-utility-cost option for consistent, predictable load weights.\u003c\/p\u003e\n\u003ch3\u003eCan the Cat® WB641679 be made mobile?\u003c\/h3\u003e\n\u003cp\u003eYes. Fork pockets on the Cat® WB641679 base frame allow forklift relocation across the facility floor. For workstations requiring frequent repositioning without a forklift, the \u003ca href=\"https:\/\/labsupplies.com\/products\/cat-portability-package-pallet-carousels-lift-tables-wb641681\"\u003eCat® Portability Package (WB641681)\u003c\/a\u003e is the factory-designed accessory that adds a long handle and wheel kit for one-operator mobility — available now at LabSupplies.com. The Cat® WB641681 Portability Package is compatible with both the airbag-operated WB641679 and the spring-actuated WB641680.\u003c\/p\u003e\n\u003ch2\u003eCat® Pallet Carousel Accessories\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/labsupplies.com\/products\/cat-portability-package-pallet-carousels-lift-tables-wb641681\"\u003eCat® Portability Package (WB641681)\u003c\/a\u003e converts the Cat® WB641679 into a one-operator mobile unit for repositioning without a forklift — available now at LabSupplies.com. For applications with consistent, predictable load weights and no air compressor access, the Cat® Spring-Actuated Carousel (WB641680) is the zero-utility-cost alternative. Both Cat® carousel models are compatible with the WB641681 Portability Package.\u003c\/p\u003e\n\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Cat\\u00ae Airbag-Operated Self-Leveling Pallet Carousel Positioner\",\n  \"description\": \"Cat\\u00ae self-leveling airbag-operated pallet carousel skid positioner. 43\\\" diameter, Firestone captive airbag, 29-13\/16\\\" raised height, 60 PSI initial charge, self-contained after inflation.\",\n  \"sku\": \"WB641679\",\n  \"mpn\": \"WB641679\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Cat\"\n  },\n  \"manufacturer\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Cat\",\n    \"url\": \"https:\/\/www.cat.com\"\n  },\n  \"image\": \"https:\/\/images.globalindustrial.com\/images\/enlarge\/641679.webp?t=1776994199036\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/labsupplies.com\/products\/cat-self-leveling-airbag-pallet-carousel-skid-positioner-wb641679\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"3369.00\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"LabSupplies.com\"\n    }\n  },\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Turntable Diameter\",\n      \"value\": \"43 inches\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Leveling System\",\n      \"value\": \"Firestone captive airbag\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Raised Height\",\n      \"value\": \"29-13\/16 inches\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Initial Air Pressure\",\n      \"value\": \"60 PSI\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Constant Air Required\",\n      \"value\": \"No \\u2014 self-contained\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Bearing\",\n      \"value\": \"Secured ball bearing center pivot\"\n    }\n  ],\n  \"isRelatedTo\": [\n    {\n      \"@type\": \"Product\",\n      \"name\": \"Cat Portability Package WB641681\",\n      \"sku\": \"WB641681\",\n      \"url\": \"https:\/\/labsupplies.com\/products\/cat-portability-package-pallet-carousels-lift-tables-wb641681\"\n    },\n    {\n      \"@type\": \"Product\",\n      \"name\": \"Cat Spring-Actuated Pallet Carousel WB641680\",\n      \"sku\": \"WB641680\"\n    }\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the Cat\\u00ae airbag-operated pallet carousel self-leveling system work?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A captive reinforced rubber Firestone airbag inside the Cat\\u00ae WB641679 chassis expands or contracts as layers of product are added or removed, raising and lowering the 43-inch turntable platform to maintain an ergonomic working height. When weight is added, bag pressure increases and the platform rises; when weight is removed, pressure drops and the platform follows the load down. Pneumatic self-leveling delivers smoother, more linear height adjustment across a wider load range than spring-actuated systems, making the WB641679 preferred for highly variable loads.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the Cat\\u00ae WB641679 require a constant compressed air supply?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. The Cat\\u00ae airbag-operated carousel is self-contained after initial inflation. An air compressor is needed once to inflate the Firestone airbag to 60 PSI at setup, and again anytime air is manually released from the carousel during servicing. During normal operation \\u2014 loading and unloading cycles \\u2014 the airbag maintains pressure automatically without any external air line connected. 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