Gearbox for Center Pivot Irrigation

Industrial-Strength Center Pivot Irrigation Gearbox — Reliable Power for Pivot Irrigation

The agricultural gearbox is the mechanical heart of every center pivot irrigation system. Ours is purpose-built for pivot irrigation — converting PTO energy into dependable, high-torque output that keeps your irrigation system working at peak capacity. In a center pivot system, gearboxes are installed at each tower to drive the wheels that move the pivot spans in a circular path. These gearboxes operate continuously during irrigation cycles, often in wet, muddy conditions that challenge sealing and corrosion resistance.

精密なCNC加工を施した高級合金鋼から製造されたこの Center Pivot Irrigation gear drive 汎用代替品と比較して、明らかに優れた効率性を実現します。すべてのユニットは、徹底的なテストと潤滑処理が施された状態で出荷され、お客様の機器にすぐに取り付け可能です。

Center Pivot Irrigation Agricultural Gearbox

📊 Detailed Specifications — Center Pivot Irrigation Agricultural Gearbox

私たちの center pivot irrigation system gearbox is manufactured to the following specifications. Custom engineering is available for non-standard pivot irrigation applications.

パラメータ	価値
Quality Certification	ISO 9001:2015
Input Shaft Spline	6-spline (1-3/8″) / 21-spline (1-3/4″)
Ambient Temperature Range	-30°C to +100°C
出力軸タイプ	Flanged output
入力軸径	45mm
出力速度範囲	129 – 1007 RPM
Module / Diametral Pitch	M6
設計基準	ISO 6336
塗装システム	3-coat marine grade
石油生産能力	1.2 litres

パラメータ	価値
Maximum Input Torque	300 Nm
利用可能なギア比	1:1.25 to 1:3.5
Recommended Lubricant	full-synthetic 75W-140
ベアリングの設計寿命（L10）	4000 hours minimum
プライマリーギアタイプ	Helical Gears
Centre Distance	80 mm
PTO Input Speed	540 / 1000 RPM
Maximum Continuous Torque	180 – 2000 Nm
反発	≤ 15 arc-minutes
ギア段数	2

お問い合わせ先エンジニアリングチーム for a detailed specification sheet tailored to your center pivot irrigation system model and pivot irrigation conditions.

💰 Total Cost of Ownership — Center Pivot Irrigation Gearbox Analysis

The table below documents measurable differences between our premium Center Pivot Irrigation gearbox and budget alternatives. Each advantage translates directly into reduced downtime:

特徴	Budget / Import Gearbox	Our Premium Center Pivot Irrigation Gearbox
騒音と振動	85+ dB(A) — requires hearing protection	≤ 72 dB(A) — precision gear profiles eliminate mesh noise
ベアリング仕様	Standard open bearings, no pre-load	高品質テーパーローラーベアリング、精密予圧済み、10,000時間L10寿命
表面保護	Single-coat spray paint, peels after one season	Cathodic e-coat + powder coat, 1000-hr salt spray test
Gear Material & Treatment	Cast steel, surface-hardened only, shallow case	SAE 8620 alloy, gas-carburized + tempered, superfinished tooth flanks
シーリングシステム	Single-lip NBR rubber seal, no dust excluder	PTFE rotary seal + stainless wear sleeve for maximum chemical resistance
Operating Efficiency	82-87% — high fuel consumption penalty	95-97% — independently verified on calibrated dynamometer
保証とサポート	90-day warranty, no technical support	Full 2-year warranty + engineer hotline + install support

Bottom Line: Budget center pivot irrigation system gearboxes may save 30-40% upfront but cost 3-5x more through failures and lost productivity. Our Center Pivot Irrigation gearbox is the professional’s choice.

Center Pivot Irrigation application

🛠 Working Principle — Center Pivot Irrigation Agricultural Gearbox

Understanding the internal mechanics of your center pivot irrigation system gearbox empowers you to optimize performance and spot early wear signs.

Stage 1: PTO Power Reception

Power enters through a precision-machined splined coupling accepting 540 RPM (1-3/8″) or 1000 RPM (1-3/4″) PTO output. The input shaft rides on self-aligning ball bearings selected specifically for the load profile of pivot irrigation applications.

Stage 2: Gear Reduction & Torque Conversion

The heart of the gearbox is a matched set of helical gears, forged from Cr-Mo alloy steel. These gears reduce rotational speed from PTO RPM to the tower wheel drive’s working speed while proportionally multiplying torque. In a center pivot system, gearboxes are installed at each tower to drive the wheels that move the pivot spans in a circular path. These gearboxes operate continuously during irrigation cycles, often in wet, muddy conditions that challenge sealing and corrosion resistance. The gear mesh geometry is computer-optimized for even load distribution.

Stage 3: Output to the Tower Wheel Drive

The gearbox output shaft connects directly to the center pivot irrigation system’s tower wheel drive, delivering torque-multiplied power for productive pivot irrigation. The output coupling is machined to precise tolerances for responsive, zero-backlash power delivery.

Stage 4: Lubrication & Thermal Control

The spheroidal graphite iron housing acts as a heat sink with cooling fins for convective cooling. Internal splash lubrication with ISO VG 220 EP ensures all surfaces maintain a protective oil film. Labyrinth Seals at each shaft opening block contaminants while retaining lubricant.

✅ Center Pivot Irrigation Gearbox — Brand-by-Brand Compatibility

Product names below serve as a compatibility guide for replacement purposes. No endorsement or sponsorship by the listed brands is implied.

Confirmed compatible center pivot irrigation system models by manufacturer:

Yanmar — G6.2, Mk-V, J-964 ✅ Verified

AGCO — 341T, A-362, Mk-II ✅ Verified

Landini — G9.8, Mk-I, Model 8731 ✅ Verified

Pöttinger — Mk-II, J-441, 969X ✅ Verified

ISEKI — Series 111, Model 5669, F-782 ✅ Verified

Deutz-Fahr — Mk-I, 848X, Type 94A ✅ Verified

Service Components

View Parts List

Bearing kits (input & output), seal kits (all positions), matched gear pairs, shaft assemblies, overhaul kits, hardware packs. All ship within 24-48 hours.

📚 Quick Selection Guide — Choosing the Right Center Pivot Irrigation Gearbox

ご注文の前に Center Pivot Irrigation gearbox完璧な適合性と性能を確保するために、以下の重要なパラメータを確認してください。

Required tower wheel drive Speed

Refer to your center pivot irrigation system manufacturer’s manual for the recommended tower wheel drive operating speed

PTO速度と合わせて、ギアボックスに必要な正確なギア比を決定します。

トルク要求

Calculate the peak torque your pivot irrigation application generates — including shock loads from obstacles or material variations

ギアボックスは、通常運転時に過負荷保護を作動させることなく、最大トルクを処理できなければならない。

出力軸タイプ

Identify the coupling type on your center pivot irrigation system — keyed, splined, flanged, or hollow bore

出力の不一致は高価なアダプタカップリングを必要とし、潜在的な故障箇所を生み出す。

Working Hours per Season

Estimate your annual operating hours for the center pivot irrigation system to determine appropriate service life rating

High-hour operations justify premium bearing and gear specifications for lowest cost per hour

Operating Environment

Assess exposure to dust, moisture, chemicals, and temperature extremes in your typical pivot irrigation conditions

Determines the appropriate seal grade, surface coating, and housing material specification

取り付けボルトパターン

Measure the bolt hole positions, centre distances, and overall envelope on your center pivot irrigation system’s gearbox mounting flange

加工やアダプタープレートを一切必要とせず、直接ボルトオンで取り付けられます。

電力要件

Match the gearbox HP rating to your tractor’s PTO horsepower output and the center pivot irrigation system’s demand

定格が低すぎると過熱や早期故障につながり、定格が高すぎると不必要なコストと重量が増加する。

💡 プロのヒント： Not sure which model you need? Our selection engineers have cross-referenced thousands of center pivot irrigation system gearbox applications. Send us any information you have — even partial — and we will find the right match. こちらからお問い合わせください.

Agricultural Gearbox Collection

🔧 Step-by-Step Installation — Center Pivot Irrigation Gearbox

Follow these instructions for a successful installation of your new Center Pivot Irrigation gearbox. Correct installation is critical for achieving maximum service life and warranty coverage.

Step 1: Test Run & Break-In

トラクターを始動し、低回転数（約300回転/分）でPTOを作動させます。異音（研磨音、うなり音、ノッキング音、カチカチ音など）がないか注意深く聞いてください。15～20分間低速で運転し、ギアボックスハウジングの温度を（注意深く）手で監視します。すべてのシールと取り付け面からのオイル漏れがないか確認してください。徐々に最高運転速度まで上げていきます。

Step 2: Safety Preparation

Park the tractor on firm, level ground. Engage the parking brake and place wheel chocks. Turn off the engine and remove the key. Disconnect the PTO shaft from the center pivot irrigation system. Allow all components to cool completely before touching. Wear appropriate PPE including gloves and safety glasses.

Step 3: Prepare the Mounting Surface

Clean the mounting flange on the center pivot irrigation system frame with a wire brush and solvent, removing all old sealant, rust, and debris. Inspect the mounting surface for cracks, stripped threads, or warping. Chase any damaged bolt threads with a tap. Apply a thin film of anti-seize compound to the mounting face if specified.

Step 4: Position & Secure New Gearbox

Carefully lift the new Center Pivot Irrigation gearbox into position on the mounting flange, aligning all bolt holes. Insert mounting bolts hand-tight first, confirming proper alignment. Once all bolts are started, torque them in a star (cross) pattern to the value specified in the installation manual. Verify the gearbox sits flush against the frame with no gaps.

Step 5: Post-Installation Checks (10-Hour Service)

現場での最初の10時間稼働後、すべての取り付けボルトを規定トルクで締め直してください。オイルレベルを確認し、必要に応じて補充してください。すべてのシールに漏れがないか点検してください。ドライブラインガードが正しく再取り付けられていることを確認してください。今後のメンテナンス計画のために、取り付け日とアワーメーターの読み取り値を記録してください。

Step 6: Remove Old Gearbox

PTOドライブシャフトをギアボックスの入力シャフトから切り離します。フロアジャッキまたは天井クレーンでギアボックスの重量を支えます（一般的な重量：モデルによって15～70kg）。締め付け応力を均等に解放するため、すべての取り付けボルトを十字型に外します。古いギアボックスを慎重に下ろし、脇に置きます。

Step 7: Drain & Document Old Gearbox

Locate the drain plug on the existing gearbox and position a catch container underneath. Remove the drain plug and allow all oil to drain completely — inspect the oil for metal particles or discolouration that may indicate internal wear. Record the old gearbox model number, mounting bolt size, and shaft dimensions for reference.

⚠ 重要: Always consult the specific installation manual shipped with your Center Pivot Irrigation gearbox for model-specific torque values and procedures.

🔧 Problem-Solving: Center Pivot Irrigation Gearbox Field Issues

Use this diagnostic reference to identify and resolve common Center Pivot Irrigation gearbox issues in the field. Most problems can be diagnosed and addressed without removing the gearbox from the center pivot irrigation system.

⚠ 運転中の過度の振動

推定原因： 取り付けボルトが緩んでギアボックスが動く

推奨される行動： First check all mounting bolt torques — vibration frequently loosens fasteners, which then amplifies the vibration. Next, inspect the PTO driveline U-joints for wear or binding. Verify driveline angles are within specification. Finally, check the output coupling to the tower wheel drive for wear or damage.

⚠ギアボックスが過熱しています

推定原因： ゴミが詰まった冷却フィンにより放熱性能が低下する

推奨される行動： Check oil level and grade against the specification. Clean all debris from the housing exterior — especially the cooling fins. If the center pivot irrigation system is being operated at or above the gearbox’s rated power, reduce forward speed or PTO load. Consider upgrading to synthetic gear oil for improved thermal performance.

⚠ PTO作動時にギアボックスから金属的なカチッという音がする

推定原因： PTOドライブラインが長すぎるため、エンゲージメントに影響が出ている

推奨される行動： PTO作動時のみに発生する異音（運転中は発生しない）は、通常、ドライブシャフトのバックラッシュを示しています。ドライブシャフトの伸縮チューブの摩耗を確認してください。運転中に異音が発生する場合は、内部摩耗によるギアのバックラッシュ過多が考えられます。異音が徐々に大きくなる場合は、ギアボックスの点検を受けてください。

⚠ Oil Leaking from Shaft Seals

推定原因： Blocked breather vent preventing pressure relief

推奨される行動： First, check and correct the oil level — overfilling is a surprisingly common cause of seal leaks. Clean or replace the breather cap. If oil level is correct and breather is clear, the seal has worn and should be replaced using our seal kit.

⚠ Abnormal Grinding or Whining Noise

推定原因： Bearing wear or race damage

推奨される行動： Drain and inspect oil for metal particles. Refill with correct grade. If noise persists after oil change, bearing or gear inspection is required. Contact support for rebuild guidance.

上記の手順で問題が解決しない場合は、技術サポートチームにお問い合わせください専門家による診断をご希望の場合は、遠隔でのトラブルシューティングや、重大な故障状況における代替機の派遣も承ります。

📈 Engineer’s Field Notes — Center Pivot Irrigation Gearbox Installations

Our agricultural gearboxes are field-proven across every Australian state and territory. Below are documented case studies from recent Center Pivot Irrigation gearbox installations.

📍 Case #1: Dalby, QLD

お客様：	Ben Murdoch — commercial pivot irrigation contractor
位置：	Dalby, QLD
農場規模：	5000 acres
応用：	Center Pivot Irrigation gearbox for center pivot irrigation system — pivot irrigation
購入理由：	1シーズンも持たなかった安価な社外品からのアップグレードです。

“The technical support was exceptional. They asked detailed questions about our setup, recommended the correct model and ratio, and followed up after installation to confirm everything was operating correctly. That level of service is rare.”
— Ben Murdoch, Dalby, QLD

Craig Douglas — Kalgoorlie, WA

手術： commercial pivot irrigation contractor | サイズ： 2500 acres | 使用： Center Pivot Irrigation gearbox for pivot irrigation

購入理由： Retrofit older model center pivot irrigation system with improved gearbox for extended service life

“Fast delivery to a remote location was the initial reason I tried this supplier. The gearbox quality is what made me a repeat customer — we have now standardised on their products across our fleet of 6 center pivot irrigation system machines.”

📍 Perth, WA dryland farming operation — 1800 acres

クライアント： Will Greer | 応用： Center Pivot Irrigation gearbox — pivot irrigation

目的： Custom ratio requirement for a modified center pivot irrigation system not served by standard catalogues

“The oil-tight sealing on this gearbox is remarkable. After 812 hours of operationin sandy soil, the oil comes out clean at service time. Previous gearboxes always had contaminated oil by the first oil change.”

📍 Case #4: Warwick, QLD

お客様：	Neil Ferguson — grain and livestock property
位置：	Warwick, QLD
農場規模：	4000 acres
応用：	Center Pivot Irrigation gearbox for center pivot irrigation system — pivot irrigation
購入理由：	New equipment build — specifying aftermarket gearbox as OEM improvement

“Quality comparable to European OEM units at half the price point. The machining is clean, the paint is durable, and the gears are noticeably smoother than the Chinese-made unit it replaced. Recommended to three other farmers already.”
— Neil Ferguson, Warwick, QLD

Chris Lawson — Colac, VIC

手術： specialist center pivot irrigation system operator | サイズ： 2000 acres | 使用： Center Pivot Irrigation gearbox for pivot irrigation

購入理由： シーズン途中の緊急交換。オリジナルのギアボックスが壊滅的な故障を起こしたため。

“Our center pivot irrigation system operates in extremely dusty conditions and we were going through gearboxes every season. This one has survived 2 seasons and is still running perfectly. The sealing is clearly superior to what we had before.”

📚 Center Pivot Irrigation Gearbox — Your Questions Answered

🔹ギアボックスは現場で整備またはオーバーホールできますか？

定期点検（オイル交換、シール交換、ベアリング点検）は、標準工具を使用して現場で実施できます。大規模なオーバーホールには、ベアリング、シール、ガスケットを含む完全なオーバーホールキットをご用意しています。詳細なサービスマニュアルとビデオガイドは、サポートポータルからダウンロードできます。

🔹 大量購入割引を受けるには、最低注文数量はいくつ必要ですか？

We offer tiered pricing starting from single-unit purchases, with meaningful discounts beginning at 5+ units. Dealer and OEM pricing structures are available for agricultural equipment retailers and center pivot irrigation system manufacturers. Contact our sales team for a formal quotation tailored to your volume requirements.

🔹 自分の機器に適したギアボックスのモデルはどのように選べばよいですか？

Provide us with your tractor brand/model and PTO speed, the center pivot irrigation system manufacturer and model, and the old gearbox part number if available. Alternatively, measure the input/output shaft dimensions and mounting bolt pattern. Our selection engineers will identify the correct match, typically within 24 hours.

🔹 What gear ratios are available for the center pivot irrigation system gearbox?

We offer a comprehensive range of ratios from 1:1 through 1:6 to match virtually any center pivot irrigation system configuration. Standard catalogue ratios ship within days; custom ratios can be manufactured within 2-3 weeks. Our engineers will recommend the optimal ratio based on your tractor PTO speed and pivot irrigation requirements.

🔹 Which gear oil do you recommend for Australian conditions?

For most Australian climates, SAE 80W-90 EP gear oil meeting GL-5 specification is ideal. In tropical regions with sustained high temperatures, we recommend 85W-140. For southern regions experiencing cold winters, synthetic 75W-90 provides better cold-start protection. Check the oil specification card shipped with your gearbox for the definitive recommendation.

🔹 Do you provide technical support after purchase?

Yes — every purchase includes access to our engineering support team for installation guidance, troubleshooting, maintenance advice, and parts ordering. Support is available via phone, email, and our online contact form. There is no charge for technical support during or after the warranty period.

🔹ギアボックスにはどのような書類が同梱されていますか？

すべてのギアボックスには、トルク仕様、潤滑およびメンテナンススケジュール、個々の部品番号が記載された部品図、保証登録カード、およびユニットのシリアル番号とテスト結果が記載された品質検査証明書が同梱されています。

🔹 What payment and ordering options do you offer?

We accept bank transfer, credit card, and purchase orders from established accounts. For large orders, we offer 30-day payment terms subject to credit approval. Orders can be placed through our website, by email, or by phone. Pro-forma invoices are available for pre-payment arrangements.

🔹 あなたのギアボックスは、純正のOEMユニットと比べてどうですか？

当社のギアボックスは、測定可能なすべてのパラメータにおいて、純正品と同等またはそれ以上の性能を発揮します。主な改良点としては、ベアリングクラスのアップグレード、優れたシール材の使用、放熱性能の向上、そして純正品カタログにはないカスタムギア比のオプションなどが挙げられます。その結果、純正品と交換するだけで、通常は純正品よりも長持ちする製品が実現しました。

🔹オーストラリアの遠隔地の農業地域にも配達してもらえますか？

はい、オーストラリア全土の郵便番号地域（遠隔地や地方を含む）へ配送いたします。季節ごとの機器ニーズの緊急性を理解している経験豊富な農業貨物運送業者を利用しています。緊急故障時には速達便をご利用いただけます。また、人気モデルは即日発送できるよう在庫を確保しています。

🔧 Complementary Components for Pivot Irrigation Equipment

完全な動力伝達システムは、単一のコンポーネントよりも優れた結果をもたらします。以下の追加を検討してください。 Center Pivot Irrigation 設定。

⚡ PTO Drive Shaft for Your Center Pivot Irrigation

PTO Shaft

Heavy-duty PTO driveline assemblies featuring precision cross journals, integrated guard tubes, and multi-spline connections compatible with our Center Pivot Irrigation gearbox.

PTOシャフトを購入する →

⚙ 農業用ギアボックスのフルラインナップ

Gearbox Collection

当社の農業用ギアボックス製品群は、主要な農機具カテゴリーすべてを網羅しています。各製品は精密に製造されており、24ヶ月の保証が付いています。

すべてのギアボックスを見る →

⚖ Australian Standards & Center Pivot Irrigation Gearbox Compliance

Australian farmers must ensure all agricultural machinery — including center pivot irrigation system with PTO-driven gearboxes — meets applicable safety standards. Here is a summary of the requirements relevant to your Center Pivot Irrigation gearbox:

業界および安全基準

● ISO 12100 — Safety of Machinery: Gearbox design follows the general principles of risk assessment and risk reduction for pivot irrigation equipment.

● AS/NZS 3788 — Pressure Equipment: Gearbox housings safely contain internal operating pressures in compliance with applicable standards.

State Legislation

● Tasmania (WHS Regulations 2012) — mandates operator training for all PTO-driven center pivot irrigation system equipment.

● Queensland (Work Health and Safety Act 2011) — mandates compliant PTO guarding on all pivot irrigation equipment.

● South Australia (WHS Regulations 2012) — requires regular inspection of all machinery with rotating drive components.

Regional Coverage & Delivery Network

We deliver Center Pivot Irrigation agricultural gearboxes to every state and territory in Australia. Our logistics network covers major farming regions including the Atherton Tablelands, the Burdekin, and Mackay-Whitsunday, the Midlands and North West TAS, and the Barossa Valley, the Riverland, and South East SA. Whether you operate in a metropolitan fringe area or a remote pastoral station, we ship directly to your property with full tracking and delivery confirmation.

🎯 Take the Next Step — Center Pivot Irrigation Gearbox Solutions

Manufacturing Facility

ISO 9001:2015 certified quality man

Complete vertical integration — fro

In-house metallurgical lab for mate

Beyond Standard — Custom Solutions Welcome

Standard specifications don’t always fit. Our engineering team designs and manufactures custom gearboxes to your drawings, samples, or specifications. From modified OEM replacements to completely new designs for specialised center pivot irrigation system equipment — we handle it all.

Get a personalised quotation for your Center Pivot Irrigation gearbox

Learn about our company →

Your trusted partner for agricultural gearbox solutions — standard and custom — across Australia and worldwide.