Used Caterpillar 336D Crawler Excavator — Why the 36-Ton Cat 336D Is the Heavy-Duty Buyer’s Favourite 🟡🚜
YUANJIAN MachineryTodas las noticias
If you’re past 20-ton trench work and not quite running a 40–50 ton mining fleet, there is one name contractors keep coming back to:
Used Cat 336D.
The Caterpillar 336D is the benchmark 36-ton crawler excavator: Cat C9 ACERT 8.8L inline-six, 200 kW / 268 hp, 33.8–37.8 t operating weight, 1.4–2.5 m³ bucket, ~7.4 m dig depth, 35 MPa load-sensing hydraulics, 620 L fuel tank.
It’s not the cheapest 36-tonner on the market. It’s the one that still makes money at 12,000–15,000 hours if it was looked after — and that’s exactly why used 336Ds sell fast.
1. The 36-Ton Sweet Spot
|
Class
|
Example
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What it’s really for
|
|---|---|---|
|
20–22 t
|
Cat 320D, DX210W, SY215
|
Utilities, trenches, light civils
|
|
33–37 t
|
Cat 336D
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Quarry support, highway cuts, deep foundations, truck loading, demolition
|
|
40–50 t
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Cat 349, PC450, SY485
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Shot rock, mine face, heavy stripping
|
A 320D can load trucks. A 349D can move mountains.
But the 336D loads trucks all day, digs hard ground, runs a breaker, and still fits most export sites and RoRo/flat-rack logistics.
For owner-operators and mid-size contractors, 36 tons is where production stops feeling small without the fuel bill of a mining excavator.
2. Cat C9 ACERT — Big Six-Cylinder Torque
The 336D’s heart is the Cat C9 ACERT:
- 8.8 L displacement, 6 cylinders
- 200 kW / 268 hp net
- Strong low-end torque for rock digging and heavy lift
- Turbocharged, ACERT combustion control
- 620 L fuel tank = long shifts, fewer refuel runs
- Tier 3 / Stage IIIA — no DPF regeneration drama on many export builds
- Global Cat + aftermarket parts familiarity
Newer Tier 4 / Stage V machines are cleaner. But in Africa, the Gulf, Central Asia, Indonesia, PNG, Peru and Iraq, operators want an engine the local workshop already understands. The C9 passes that test.
3. Load-Sensing Hydraulics = Smooth, Strong, Repeatable
The 336D runs Caterpillar’s mature load-sensing / pressure-compensated system:
- 2 × ~280 L/min main pump flow
- 35,000 kPa (35 MPa) implement pressure
- Boom / stick / bucket / swing compound movement with minimal lag
- Heavy Lift, Standard, Economy and Attachment modes
- Precise trench walls, pipe bedding, slope grading
- Big breaker, grapple, shear, auger, ripper all supported
A 20-ton machine fights hard ground.
The 336D eats it: bucket force around 222 kN, arm force around 146 kN on standard front equipment.
4. Built Like a Small Mining Excavator
The 336D isn’t a stretched 320. The structure is heavier:
✅ X-frame box-section undercarriage
✅ Reinforced boom and stick with high-tensile steel
✅ Sealed and lubricated track chains
✅ 600 / 700 / 800 mm shoe options
✅ 5,020 kg counterweight on the L version
✅ ROPS/FOPS cab, isolated mounts, low in-cab noise
✅ Ground-level filter access for daily service
Buy a clean used 336D with decent rollers and a straight boom, and you get a machine that still digs quarry face, loads aggregates, and pulls breaker duty for years.
5. Truck Loading Beast
Pair a 336D with 20–30 t dump trucks and the cycle times make sense:
- 1.8 m³ GP bucket = big bite of overburden
- 2.2–2.5 m³ lightweight material bucket = fast pit loading
- Rock bucket + tooth adapter = limestone, basalt, hard clay
- Swing speed ~10 rpm, travel 3.1–5 km/h
- 300 kN drawbar pull for muddy yard recovery
A 320D loads the same truck in more passes.
A 349D loads it faster but burns more fuel and costs far more to own.
The 336D is the loading-class machine that pays back fastest for mid-size fleets.
6. Attachments Turn It Into Five Machines
With aux hydraulics + quick coupler:
🪣 Heavy rock / GP / skeleton bucket
🪨 Hydraulic breaker — slab, oversize, quarry boulder
🌀 Auger — foundation piles, piers, signage
🍴 Pallet forks — yard, depot, pipe storage
Grapple — demolition sorting, scrap, rebar, branches
🧲 Magnet — scrap yard
✂ Shear — structural demolition
One 336D covers quarry, road, foundation, demolition and material-handling jobs — if the hydraulics are healthy.
7. Why Buy Used Instead of New?
A new 36-ton Cat Next Gen is a serious capital decision: higher purchase price, tighter emission systems, more electronics, higher filter/DEF/DPF running cost.
A used 336D gives you:
✔ Cat badge and resale trust
✔ C9 simplicity vs newer tight-emission platforms
✔ Much lower upfront cost
✔ Proven structure already “run-in”
✔ Faster ROI for owner-operators
✔ Spare parts everywhere — Cat dealers + aftermarket
You’re not buying “old”. You’re buying proven iron at used-machine math.
8. Why the 336D Over a 330 / 329?
The 329D / 330 class is great. But once you’re doing:
- quarry support
- aggregate loading
- deep highway cuts
- hard rock and limestone
- 20-ton+ truck cycles
- heavy demolition with shear/breaker
…the 336D’s extra mass, bigger bucket envelope, and C9 torque start paying for themselves.
The 329D is the “growing contractor” machine.
The 336D is the “I load trucks and dig rock for a living” machine.
9. Why the 336D Over a 349 / 350?
Because the 349 class:
- costs more to buy
- burns more fuel
- wears undercarriage faster
- needs bigger transport
- is over-spec for general civils and quarry support
If you’re not digging shot rock 20 hours a day, the 336D often delivers 90% of the heavy work at materially lower cost of ownership.
10. Resale: Cat 336 Still Commands Respect
In most export markets:
- Unknown brand 36t = hard to resell
- Komatsu PC360 = strong
- Sany / LiuGong / XCMG 36t = good value, rising trust
- Cat 336D = instant recognition, easier finance, easier resale
Quarry owners, road contractors and equipment dealers know what a 336D is. That lowers your risk when you rotate fleet stock.
11. What a “Good Used 336D” Must Have
We don’t sell “starts and digs.”
✅ C9 ACERT cold start — no blow-by, no coolant loss, no white/black smoke drama
✅ Hydraulic pressure test — boom/stick/bucket/swing/travel at 35 MPa
✅ Pump case-drain check
✅ Final drive & swing motor leak / play inspection
✅ Undercarriage %: link stretch, sprocket teeth, roller play, pad thickness
✅ Boom/arm welds, kingpost, counterweight mounts
✅ Cab A/C, monitor, joystick play, backup alarm
✅ Hour meter vs pump/engine/uc wear consistency
✅ Pre-shipment dig + swing + travel + breaker test video
12. Typical Used Cat 336D Specs
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Item
|
Spec
|
|---|---|
|
Class
|
36-ton crawler excavator
|
|
Operating weight
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33,750–37,800 kg
|
|
Engine
|
Cat C9 ACERT, 8.8 L, 6-cyl turbo
|
|
Power
|
200 kW / 268 hp
|
|
Bucket
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1.4–2.5 m³ (GP / rock / light-material)
|
|
Max dig depth
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~7,390 mm (standard front)
|
|
Max reach
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~10,920 mm
|
|
Bucket force
|
~222 kN
|
|
Arm force
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~146 kN
|
|
Hydraulics
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Load-sensing, 2 × 280 L/min, 35 MPa
|
|
Swing
|
~10 rpm
|
|
Travel
|
3.1–5 km/h
|
|
Drawbar pull
|
~300 kN
|
|
Fuel tank
|
620 L
|
|
Hydraulic system
|
410 L incl. tank / 175 L tank
|
|
Track shoes
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600 / 700 / 800 mm
|
13. Best Buyers for a Used 336D
✅ Quarry & aggregate contractors
✅ Road / highway / bridge builders
✅ Open-pit mine support crews
✅ Heavy demolition companies
✅ Rental yards serving civils + quarry
✅ Equipment dealers wanting fast-resale Cat stock
✅ Large earthworks / land reclamation contractors
Who Should Look Elsewhere
❌ Only trenching gardens → 320D / DX210W / SY215
❌ True mine-face loading 24/7 → 349 / 350 / PC450 class
❌ Needs factory warranty + Tier 4/Stage V paperwork → buy new Next Gen
❌ Won’t service fuel/water separators → even a Cat C9 will suffer
14. Applications
🪨 Quarry rock digging & truck loading
🏗 Highway cuts, bridge abutments, deep foundations
🏚 Demolition with grapple / shear / pulverizer
🛤 Railway ballast, drainage canals, river dredging
🏭 Scrap yard, material handling, bin sorting
♻ Landfill cell construction & compaction support
🛢 Mine ROM pad, overburden, crusher feed
15. Export & Inspection Service
✔ Used Cat 336D, inspected & serviced
✔ Rock / GP / light-material bucket options
✔ Breaker piping, quick coupler, long-reach boom
✔ New filters, fresh engine/hydraulic oil where agreed
✔ Spare seal / filter starter kit
✔ SGS / BV / buyer-agent inspection welcome
✔ Shipping: RoRo / flat rack / 40FR
✔ Docs: CI, PL, B/L, CO, inspection report
✔ Terms: EXW / FOB / CIF / CFR
Common destinations:
Kenya · Tanzania · Nigeria · Ghana · Saudi · UAE · Iraq · Kazakhstan · Indonesia · Philippines · PNG · Peru · Chile · Mongolia
Bottom Line
The Cat 336D is not the smallest 36-ton excavator. It’s not the newest either.
But for contractors who actually dig rock, load trucks, run breakers, and resell with confidence, the used 336D is one of the safest bets in the heavy-equipment world:
- C9 ACERT torque you can feel
- Cat load-sensing hydraulics that operators trust
- Reinforced structure for quarry and demolition life
- Global parts and resale recognition
- Used price vs new-36-ton reality check
If your business has outgrown a 20-ton machine but doesn’t need a mining titan — the 336D is the heavy excavator that makes financial sense.
📩 Get the Used Cat 336D Quote
Send us:
- Year / hour range
- Standard or Long undercarriage? 600 / 700 / 800 mm pads?
- Bucket: rock / GP / light material?
- Breaker piping / quick coupler / shear / grapple?
- Destination port → FOB or CIF?
We send:
✅ Yard photos
✅ Cold-start + dig + swing + travel + attachment video
✅ Hour meter + serial + C9 engine number
✅ Undercarriage % + hydraulic pressure report
✅ FOB / CIF quote + RoRo / flat-rack plan
WhatsApp: 【+86 13866666316】
📧 Email: yuanjianltd@163.com
🌐 Website: https://www.cnusedexcavator.com
Yard: Hefei, Anhui, China
Status: Inspected, serviced, container-ready.
🌐 Website: https://www.cnusedexcavator.com
Yard: Hefei, Anhui, China
Status: Inspected, serviced, container-ready.
Cat 336D — 36 tons of Cat attitude, quarry-proven, resale-ready. 🟡🚜