{"id":1623,"date":"2026-04-16T07:20:46","date_gmt":"2026-04-16T07:20:46","guid":{"rendered":"https:\/\/planetarygeardrive.top\/?p=1623"},"modified":"2026-04-16T07:20:46","modified_gmt":"2026-04-16T07:20:46","slug":"planetary-gearbox-ip-rating-guide","status":"publish","type":"post","link":"https:\/\/planetarygeardrive.top\/it\/application\/planetary-gearbox-ip-rating-guide\/","title":{"rendered":"What IP rating do you need for a planetary gearbox? IP65, IP67, and IP69K explained"},"content":{"rendered":"
\n
\n

Planetary Gearbox Basics<\/p>\n

Core Keyword: IP65 planetary gearbox \u00a0\u00b7\u00a0 Category: planetary-gearbox-basics<\/p>\n<\/div>\n

IP Ratings for Planetary Gearboxes: What IP65, IP67, and IP69K Mean and How to Select the Right Protection Level<\/h2>\n

When a planetary gearbox is deployed in a wet, dusty, outdoor, or washdown environment, the IP (Ingress Protection) rating<\/strong> of the gearbox housing determines whether the unit will survive its intended service life. Selecting insufficient IP protection leads to early bearing failure, gear corrosion, lubricant contamination, and ultimately gearbox failure \u2014 often in the most inaccessible part of the machine where replacement costs can exceed the gearbox value by 5\u201310\u00d7. This guide explains the IEC 60529 IP rating system as it applies to planetary gearboxes, compares the key protection levels, and provides application-based selection guidance to help engineers specify the correct sealed gearbox for their operating conditions.<\/p>\n

Understanding the IP Rating Code: Two Digits, Two Types of Protection<\/h2>\n

An IP rating consists of two digits: the first indicates solid particle protection (dust, debris, fibers), the second indicates liquid ingress protection (water, oil, cleaning solutions). A letter “X” in either position means that protection against that hazard has not been tested or is not applicable to that product type.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
IP Code<\/th>\nSolid Protection<\/th>\nLiquid Protection<\/th>\nTypical Application<\/th>\n<\/tr>\n<\/thead>\n
IP54<\/td>\nDust limited ingress \u2014 some dust may enter but not enough to interfere with operation<\/td>\nSplashing water from any direction<\/td>\nLight industrial, indoor factories, CNC machine enclosures<\/td>\n<\/tr>\n
IP65<\/td>\nDust tight \u2014 no dust ingress under vacuum test<\/td>\nLow-pressure water jets (12.5 L\/min, 6.3 mm nozzle, 30 kPa)<\/td>\nOutdoor, dusty factory (wood, cement, mining), general washdown<\/td>\n<\/tr>\n
IP66<\/td>\nDust tight<\/td>\nHigh-pressure water jets (100 L\/min, 12.5 mm nozzle, 100 kPa)<\/td>\nHeavy washdown, outdoor exposed (seaside, high-rain regions)<\/td>\n<\/tr>\n
IP67<\/td>\nDust tight<\/td>\nTemporary immersion \u2014 1 m depth for 30 minutes<\/td>\nSubmerged conveyors, wash tanks, agricultural spray equipment<\/td>\n<\/tr>\n
IP68<\/td>\nDust tight<\/td>\nContinuous immersion \u2014 depth and duration manufacturer-specified<\/td>\nUnderwater robotics, marine propulsion, submerged pumps<\/td>\n<\/tr>\n
IP69K<\/td>\nDust tight<\/td>\nHigh-pressure, high-temperature steam jet (80\u00b0C, 80\u2013100 bar, 14\u201316 L\/min)<\/td>\nFood & beverage processing, pharmaceutical, dairy washdown<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

IP65 Planetary Gearbox: The Industrial Standard for Dust-Tight, Jet-Wash Resistant Operation<\/h2>\n

An IP65 planetary gearbox<\/strong> is fully dust-tight (first digit 6: no ingress of dust under a 2-hour vacuum test at 20 mbar below atmospheric pressure) and protected against low-pressure water jets from any direction (second digit 5: water projected by a 6.3 mm diameter nozzle at 12.5 L\/min and 30 kPa pressure, from any angle). This makes IP65 the most commonly specified protection level for demanding industrial environments where the gearbox will be exposed to blowing dust, rain, or occasional hose-down cleaning but not high-pressure washing.<\/p>\n

Typical IP65 planetary gearbox applications include:<\/strong><\/p>\n