{"id":3512,"date":"2026-10-26T13:08:56","date_gmt":"2026-10-26T05:08:56","guid":{"rendered":"http:\/\/www.nasilfirma.com\/blog\/?p=3512"},"modified":"2026-10-26T13:08:56","modified_gmt":"2026-10-26T05:08:56","slug":"can-hawe-pump-be-used-in-a-horizontal-position-48cb-8df6ab","status":"publish","type":"post","link":"http:\/\/www.nasilfirma.com\/blog\/2026\/10\/26\/can-hawe-pump-be-used-in-a-horizontal-position-48cb-8df6ab\/","title":{"rendered":"Can HAWE Pump be used in a horizontal position?"},"content":{"rendered":"

Hey everyone, if you\u2019ve ever worked with hydraulic systems, chances are you\u2019ve heard of HAWE pumps\u2014they\u2019re that workhorse brand everyone trusts for tough, high-pressure jobs. But I get it: one question we get all the time<\/em> from new folks and even some seasoned operators is, \u201cCan a HAWE pump be used in a horizontal position?\u201d It\u2019s a solid question, honestly, because not every pump plays nice when you lay it down instead of mounting it vertical or at that weird angle the manual says. As a HAWE pump supplier, I\u2019ve fielded this query so many times I could probably answer it in my sleep, but let\u2019s break this down like we\u2019re chatting over a coffee (no stuffy manuals here, promise). HAWE Pump<\/a><\/p>\n

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First off, let\u2019s cut to the chase: the short answer is mostly yes, but not all HAWE pumps<\/em>\u2014that\u2019s the key part people miss. A lot of folks assume all hydraulic pumps need to sit straight up, but HAWE\u2019s built different because they engineer for real-world scenarios, not just lab setups. Let\u2019s start with why people even care about horizontal mounting in the first place. Think about it: if you\u2019re fitting a pump on a skid steer, a small crane, or even a mobile truck-mounted crane, vertical space is at a premium. Laying a pump horizontal lets you tuck it into tight spots, save vertical room for other parts, and even lower the overall center of gravity a little for better stability on moving equipment. That\u2019s a game-changer for guys who aren\u2019t working in a perfectly flat, infinite-space workshop.<\/p>\n

Now, let\u2019s get into the nitty-gritty that makes this work (or not) because that\u2019s where confusion creeps in. HAWE pumps come in a bunch of types\u2014gear pumps, piston pumps, vane pumps, even their iconic radial piston pumps\u2014and each has different internal parts that dictate mounting position. Let\u2019s start with the most common ones our customers ask about: radial piston pumps, which are like HAWE\u2019s bread and butter. These are the ones you see on high-pressure hydraulic systems, for things like press brakes or heavy construction gear. From what we\u2019ve tested and what HAWE\u2019s official docs say (I\u2019ve memorized most of them, tbh), a lot of HAWE\u2019s standard radial piston pumps are designed to run horizontally as long as the inlet side is above the pump\u2019s oil level<\/em>. Wait, why? Because these pumps use a small amount of oil for lubrication and cooling the internal pistons and cam ring. If you lay it down so the inlet is below the oil level, you risk what\u2019s called \u201coil starvation\u201d\u2014the pump can\u2019t draw enough lubricant, which leads to way too much friction, overheating, and a dead pump way before its time. That\u2019s the big gotcha, not the horizontal part itself.<\/p>\n

Then there\u2019s axial piston pumps, another big HAWE line. Some of these can<\/em> handle horizontal mounting, but only the models specifically labeled as \u201cmulti-position\u201d or \u201chorizontal-capable.\u201d The older axial piston models? Not so much. Their design has a swashplate that relies on gravity to keep the piston shoes seated right. If you lay that pump on its side, gravity pulls the shoes away from the swashplate, which causes leaks and a drop in pressure. We had a customer last year who tried mounting an old axial piston pump horizontal on a wood chipper, and within a week, it was leaking so bad he had to replace it. That\u2019s exactly why I tell folks to check the model number first, not just assume \u201cHAWE = flexible mounting.\u201d<\/p>\n

Gear pumps are the easiest of the bunch, honestly. Most HAWE gear pumps can run horizontal with almost no restrictions, as long as you don\u2019t block the inlet or outlet ports. Their internal design is super simple\u2014two gears spinning in a casing\u2014so gravity doesn\u2019t mess with how they function nearly as much as piston pumps do. I\u2019ve seen a HAWE gear pump running horizontal on a mobile street sweeper for three years straight, no issues. That\u2019s the low-hanging fruit for anyone looking to mount horizontal.<\/p>\n

Now, let\u2019s talk about the stuff no one tells you, the real-world tips that come with being a supplier who\u2019s been around for years. First, always double-check the \u201cmounting position\u201d section of the manual for your exact model. HAWE publishes these super clearly on their site (I send customers the link every time, no shame) and even has little diagrams showing which positions are allowed. A lot of the misinformation online comes from people using the wrong manual for the wrong pump\u2014super easy to do when HAWE has like 50 different pump models.<\/p>\n

Second, prime that pump before<\/em> you run it, especially if you\u2019re mounting it horizontal. Priming is just filling the pump with oil before you start the system. If you\u2019re laying the pump down, the oil might not reach the internal parts as easily, so priming eliminates that oil starvation risk even if the inlet is a little low. We always tell customers to use a handheld pump to squirt clean hydraulic oil into the inlet port before firing it up, and we\u2019ve had zero issues from that extra step.<\/p>\n

Third, watch for seals. Some horizontal-mounted pumps have shaft seals that are designed for vertical mounting, and laying them on their side can cause seal wear faster, especially if the pump is moving (like on mobile equipment). HAWE\u2019s newer horizontal-capable pumps have double-lipped seals that handle that extra stress, but if you\u2019re retrofitting an older pump, you might want to upgrade the seals to match the horizontal position. We sell those replacement seals as part of our after-hours support, so it\u2019s not a big hassle.<\/p>\n

Wait, let\u2019s address the elephant in the room: why do some people swear HAWE pumps can\u2019t<\/em> be horizontal? It\u2019s not that they can\u2019t\u2014it\u2019s that they bought the wrong pump for their setup. I\u2019ve had customers come in with a cheap generic pump that\u2019s not HAWE, and they mix it up, which is why the confusion spreads. HAWE is specific, and that specificity is what makes them great, but it\u2019s also what makes the one-size-fits-all \u201ccan it be horizontal\u201d question tricky. For example, our customer who had the issue with the axial piston pump? He grabbed a used HAWE axial pump from a yard sale, not realizing it was an old model that only worked vertical. Once he swapped it for a newer horizontal-rated model, his wood chipper ran for six months without a single hiccup.<\/p>\n

Another common scenario: hydraulic power units (HPUs) that use multiple HAWE pumps. If you\u2019re building an HPU for a small press, you might have two pumps stacked vertically, but for a portable HPU for a job site, you\u2019d mount them horizontal to save space. We design our HPUs with that in mind, too\u2014we spec the right HAWE pumps for each HPU, so customers don\u2019t have to guess. If you\u2019re buying a custom HPU from us, we\u2019ll even let you pick the mounting position upfront, so we can choose the exact pump model that fits.<\/p>\n

Let\u2019s also touch on pressure ratings, because that\u2019s another big one for HAWE pumps. Most high-pressure HAWE pumps (the ones rated for 1000 bar and up) can handle horizontal mounting as long as the inlet is above oil level, like I said earlier. The low-pressure, general-purpose pumps? Same rule applies, they\u2019re actually more flexible sometimes. I\u2019ve had a customer mount a HAWE low-pressure gear pump horizontal on a small agricultural sprayer, and it\u2019s been running fine for two years, even through rough field work.<\/p>\n

Now, let\u2019s get real about mistakes people make. The biggest mistake is not planning for the inlet line when mounting horizontal. If the inlet hose is pointing straight down because the pump\u2019s lying on its side, the oil can\u2019t flow into the pump properly, which causes cavitation. Cavitation is when air gets into the pump instead of oil, and that\u2019s a killer\u2014makes noise, drops pressure, and can damage the internal parts permanently. The fix here is simple: use a flexible inlet hose that curves upward to the pump\u2019s inlet port, so the oil can flow freely, no matter how the pump is oriented. That\u2019s a $10 fix that saves you $10,000 in a new pump, trust me.<\/p>\n

Another mistake? Not checking for drain lines. Some HAWE pumps have a drain port that needs to be at a certain angle to let excess oil leak out. If you mount the pump horizontal, you have to make sure that drain port isn\u2019t trapped in the casing, which would cause pressure buildup inside the pump. Again, the manual has a diagram, just spend 5 minutes looking at it instead of winging it.<\/p>\n

Now, as a supplier, I want to be clear: we don\u2019t just sell HAWE pumps and ghost you after the sale. We\u2019ve seen so many customers mess up their first horizontal mount because they didn\u2019t ask the right questions, so we make it a point to walk them through every step. If you\u2019re working on a project and you\u2019re not sure if your HAWE pump can be horizontal, just shoot us a message, send over the model number, and we\u2019ll tell you exactly what you need to do. We even have free mounting guides that we\u2019ve put together from years of working with HAWE pumps, so you don\u2019t have to dig through their official docs if you don\u2019t want to.<\/p>\n

Wait, let\u2019s wrap this up so it\u2019s not just a list of tips. The key takeaway is: yes, a HAWE pump can<\/em> be used in a horizontal position\u2014but only if you match the model to your mounting setup, follow the simple rules about oil flow and seals, and don\u2019t skip the priming step<\/em>. It\u2019s not a one-size-fits-all answer, but that\u2019s why we\u2019re here as suppliers, to help you get it right the first time, no headaches, no wasted money.<\/p>\n

<\/p>\n

If you\u2019re currently working on a hydraulic system, whether it\u2019s a mobile unit, a stationary press, or anything in between, and you\u2019re thinking about mounting your HAWE pump horizontally, don\u2019t guess. Reach out to us to discuss your specific requirements, get product recommendations, or ask any follow-up questions about mounting, maintenance, or replacement parts. We\u2019re here to make sure your hydraulic system runs smooth, no matter what position your pump\u2019s in.<\/p>\n

PARTS<\/a> References:<\/p>\n

    \n
  1. HAWE Hydraulik SE. (2023). Product Catalog: Radial and Axial Piston Pumps. Munich, Germany.<\/li>\n
  2. Hydraulic Institute. (2022). Mounting Guidelines for Hydraulic Pumps. Cleveland, OH.<\/li>\n
  3. HAWE Hydraulik North America. (2024). Horizontal Mounting Application Notes. Chicago, IL.<\/li>\n
  4. Personal communications with HAWE field service technicians, 2021\u20132024.<\/li>\n
  5. Field performance data from customer installations, HAWE pump supplier network, 2019\u20132024.<\/li>\n<\/ol>\n
    \n

    Fujian Zhenyuan Hydraulic Equipment Co., Ltd.<\/a>
    Fujian Zhenyuan Hydraulic Equipment Co., Ltd. is well-known as one of the leading hawe pump manufacturers and suppliers in China. If you’re going to wholesale hawe pump in stock, welcome to get quotation from our factory. All customized products are with high quality and low price.
    Address: No. 125, Wuli Industrial Zone, Jinjiang, Quanzhou City, Fujian Province
    E-mail: yexun@fjzhenyuan.com
    WebSite:     https:\/\/www.zhenyuanhydraulic.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    Hey everyone, if you\u2019ve ever worked with hydraulic systems, chances are you\u2019ve heard of HAWE pumps\u2014they\u2019re … Can HAWE Pump be used in a horizontal position?<\/span>Read more<\/a><\/p>\n","protected":false},"author":933,"featured_media":3512,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3475],"class_list":["post-3512","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-hawe-pump-4ad9-92f9ce"],"_links":{"self":[{"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/posts\/3512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/users\/933"}],"replies":[{"embeddable":true,"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/comments?post=3512"}],"version-history":[{"count":0,"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/posts\/3512\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/posts\/3512"}],"wp:attachment":[{"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/media?parent=3512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/categories?post=3512"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.nasilfirma.com\/blog\/wp-json\/wp\/v2\/tags?post=3512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}