説明
EP-CTD3300 Planetary Track Drive Gearbox ?? 33,000 Nm
Brevini CTD3300 Compatible Replacement | EVER POWER
の EP-CTD3300 delivers 33,000 Nm output torque with an optionally available dual-speed function built directly into the gearbox body ?? replacing the need for a costly separate two-speed motor. Engineered to replace the Brevini riduttori CTD3300, this unit is specified by machine designers who need one track drive unit to serve both high-torque work mode and faster tramming mode on 30-40 t class equipment.
製品概要
The EP-CTD3300 serves 30-40 t hydraulic excavators, large tracked road headers, heavy crawler-mounted pile drivers and large-format tracked agricultural machines. The gearbox-integrated dual-speed mechanism hydraulically engages or bypasses the third planetary stage, providing a torque-biased low speed for work and a higher speed for travel ?? all controlled by the machine’s existing travel control valve without additional hydraulic circuit hardware.
技術仕様
| パラメータ | 価値 |
|---|---|
| モデル | EP-CTD3300 |
| 交換する | Brevini riduttori CTD3300 |
| 最大出力トルク | 33,000 Nm |
| ギアステージ | 3 |
| Dual-Speed | Optional hydraulic ratio change |
| 比率範囲 | 30:1 – 160:1 |
| 最大入力速度 | 2,400 rpm |
| 連続熱限界 | 48 kW |
| ハウジング材 | Ductile Iron GGG50, epoxy-chromate coated |
| 潤滑 | Synthetic ISO VG 220 (factory filled) |
| 保護等級 | IP68 |
| 動作温度 | -30℃～+85℃ |
| おおよその重量 | ~98 kg |
| Brake | Spring multi-disc / hydraulic release |
動作原理
In single-speed configuration, the three planetary stages operate in series providing the full 160:1 ratio at maximum torque. In dual-speed configuration, a hydraulically actuated clutch pack inside the stage-3 housing engages or disengages stage 3 independently. When stage 3 is disengaged (bridged), the unit outputs at the 2-stage ratio ?? approximately 2.5x faster than the 3-stage ratio ?? allowing the machine to tramp to the next work position quickly before re-engaging stage 3 for work.
の dual-speed clutch pack uses sintered metal friction discs rated for 50,000 engagement cycles, managed by a solenoid valve on the machine travel circuit. Speed changes occur smoothly under load at walking pace.
主な利点
|
◼ Gearbox-Integrated Dual Speed
No separate two-speed motor required ?? saves cost, weight and hydraulic circuit complexity. |
◼ 50,000-Cycle Clutch Pack
Sintered metal discs rated for 50,000 speed changes ?? suits high-frequency dual-speed operation. |
|
◼ 33,000 Nm High Torque
Handles the highest torque demands of 30-40 t class machines in single-speed work mode. |
◼ Epoxy-Chromate Coating
500-hour salt spray rated external coating for extended outdoor storage and harsh site conditions. |
|
◼ Direct CTD3300 Drop-In
Matching flange and port layout ?? installs in the original Brevini housing pocket without modification. |
構造と材料技術
ハウジングは鋳造されています GGG50 ダクタイル鋳鉄 and externally coated with epoxy-chromate primer + polyurethane topcoat (500-hour salt spray). The dual-speed clutch housing is a separate bolted module that can be removed and serviced independently without disturbing the main gear train. All planet gears use 17CrNiMo6浸炭鋼 ground to DIN 5. The output bearing is a large-bore taper roller pair pre-loaded at the factory to prevent axial play under the combined sprocket and chain loads of a 35 t class excavator.
典型的なアプリケーションシナリオ
| 業界 | Machine / Use | Key Requirement |
|---|---|---|
| Earthmoving | 35 t excavator, quarry bench | Low speed for bench digging; high speed for 200 m cross-quarry trams between benches. |
| 鉱業 | Crawler road header, coal mine drift | Slow precise cutting advance; faster speed for repositioning between cuts. |
| Piling | Tracked hydraulic piling rig | Low speed for precise pile position; faster tramming between pile locations on large sites. |
| Agriculture | Large tracked field cultivator | Low speed for field work; higher speed for road travel between fields. |
選択ガイド
- Dual Speed Required? ?? Confirm if machine needs two distinct travel speed ranges; standard single-speed available at lower cost.
- Ratio Selection ?? State required low speed and high speed; EVER POWER will confirm stage 2/3-stage ratios.
- Clutch Engagement Frequency ?? For high-frequency dual-speed (> 30 changes/hour) specify heavy-duty clutch disc set.
- Ambient Temperature ?? Below -25 degC: specify Arctic oil and seal grade.
- Motor Flange ?? Provide hydraulic motor model for direct shaft and flange confirmation.
当社のエンジニアにお問い合わせください for dual-speed ratio optimisation.
Brevini CTD3300 vs. EVER POWER EP-CTD3300
重要なお知らせ： EVER POWER references the Brevini riduttori CTD3300 model number solely to assist customers in identifying a compatible replacement. We do not manufacture, sell, or claim any affiliation with Brevini riduttori. No trademarks or intellectual property of Brevini are reproduced. The EP-CTD3300 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| 側面 | Brevini CTD3300 | EVER POWER EP-CTD3300 |
|---|---|---|
| 価格 | High OEM rate | Competitive alternative |
| リードタイム | 10-18 weeks | 3-6 weeks |
| Dual-Speed | Available at premium | 標準カタログオプション |
| Clutch Life | Standard | 50,000-cycle sintered disc |
| 保証 | 12 months | 18 months |
Matched travel motors for EP-CTD3300 single and dual-speed configurations available from EVER POWER. Request a complete drive system quotation.
品質認証とサービスへの取り組み
- ISO 9001:2015 ?? Dual-speed clutch assembly tested and documented per unit.
- CEマーキング ?? Machinery Directive 2006/42/EC.
- 18ヶ月保証 from dispatch ?? includes dual-speed clutch pack.
- Spare clutch disc sets stocked for priority dispatch.
詳細は以下をご覧ください エバーパワーについて.
事例研究？？？エンジニアの現場メモ
| 国 | 応用 | お客様からのフィードバック |
|---|---|---|
| ロシア | 35 t excavator, Siberian coal open cast, dual-speed | “The tram time between benches dropped by 35% after installing the dual-speed units. Fuel consumption fell accordingly. Huge productivity gain.” ?? Mine Equipment Director, Kemerovo. |
| アメリカ合衆国 | Tracked hydraulic piling rig, Texas infrastructure project | “Moving a piling rig 50 m between piles at low speed costs 20 minutes. With dual-speed it takes 6 minutes. On a project with 400 piles, that adds up.” ?? Project Manager, Houston. |
| フランス | Large tracked field cultivator, grain farm | “Road speed between parcels is important for our operator’s working day. The dual-speed gearbox gave us a compliant road travel speed without a separate motor swap.” ?? Farm Machinery Manager, Beauce. |
よくある質問
Q: Can the dual-speed module be added to a standard single-speed unit already on the machine?
A: No. The dual-speed module requires a specific housing boss and internal bore. It must be specified at order. Field addition is not feasible.
Q: What happens if the dual-speed solenoid valve fails?
A: On solenoid failure the clutch defaults to the low-speed (full 3-stage) mode ?? the machine can still travel and work safely, only without the fast travel function.
Q: Is the clutch module separately serviceable?
A: Yes. The dual-speed clutch module is bolted to the main housing and can be removed without disturbing the gear train. A spare clutch set can be fitted in approximately 3-4 hours.
EVER POWERと提携しましょう
EVER POWER delivers track drive solutions from compact mini-excavators to the largest mining machines. See our 交換部品の全ラインナップ または contact us for a quotation. Homepage: 遊星歯車機構.top.
