A reach stacker is a wheeled container-handling machine that lifts, stacks, and transports intermodal containers in ports, rail yards, and terminals. It uses a telescoping boom and rotating spreader to reach across multiple container rows—up to three deep and six high—making it a practical fit for medium-throughput yards that need flexible container handling without the cost of fixed infrastructure.
If you run an intermodal yard, inland container depot, rail terminal, or port and need to buy, sell, or evaluate a reach stacker, the right machine can raise throughput in tight spaces; the wrong one can waste six figures and slow the whole operation. This post explains how reach stackers work, how they compare with forklifts and gantry cranes, which specs and maintenance points matter most, what new and used units typically cost, and who should actually own one.
A reach stacker is a mobile crane-forklift hybrid built for shipping containers. It grips containers with a top-mounted spreader, lifts them with a telescoping boom, and stacks or transports them across a yard.
The reach part is the advantage. Unlike a standard forklift that only handles the front row, a reach stacker extends its boom to grab containers stacked two or three rows back. It handles both loaded and empty containers, ISO sizes from 20 to 40 feet.
Core components:
Telescoping boom — extends and lifts, controls stacking height and reach depth
Rotating spreader — grips container corner castings, twist-locks for secure lifting
Counterweight — offsets load weight, keeps the machine stable under full lift
Diesel engine — typically 250–350hp, powers hydraulics and drivetrain
The machine drives on rubber tires, so it moves between stacks and loading points without rails. That mobility is why terminals pick reach stackers over rail-mounted gantry cranes for medium-throughput operations.
Each machine wins in a different scenario. Pick based on throughput, space, and budget.
Reach stacker. Best for medium-volume yards that need flexibility. Stacks containers three deep, six high. Moves freely across the yard. Higher upfront cost than a forklift but far cheaper than a gantry system. Choose this if you handle a mix of container sizes and need to reposition quickly.
Container forklift. Best for high-volume, front-row-only handling of loaded containers. Simpler machine, lower maintenance. But it can't reach past the first row, so it eats floor space. Choose this if your yard is wide, flat, and single-row.
Gantry crane (RTG or rail-mounted). Best for very high-throughput ports moving thousands of containers daily. Stacks higher and denser than any reach stacker. But it's fixed infrastructure—massive capital cost, limited mobility. Choose this only if volume justifies the investment.
The tradeoff comes down to density versus flexibility. A gantry crane packs more containers per acre. A reach stacker goes anywhere on tires and costs a fraction of the install. For most terminals under a few hundred containers a day, the reach stacker wins on total cost.
Define your needs before you look at prices. The fastest way to overpay is to shop on brand instead of spec.
Four numbers decide the machine:
Lifting capacity (first row). Rated in metric tons, reach stackers are available across a wider range—roughly 10 to 46 tons—with many standard machines handling loaded containers in the 40–45t range, and heavy-duty models able to lift containers weighing over 45 tons or up to 46 tons. This is your ceiling—the heaviest loaded container you can safely lift in the front position.
Stacking height. How high the boom stacks, measured in container rows (typically 4-high to 6-high). Many machines stack 4 to 5 high in everyday yard setups, while larger models can go higher depending on row position. More height means more density per acre.
Reach depth. How many rows back the boom extends—one, two, or three deep. Capacity drops as reach extends, so check the derated numbers, not just the headline figure.
Engine power. 250–350hp is standard. More power means faster cycle times but higher fuel burn.
The mistake buyers make is quoting the first-row capacity and ignoring the derate. A machine rated at 45t in row one might only handle 27t in row three. Intelligent stabilization systems and high-precision maneuverability matter for safety when lifting at reach in tight yards. Match the derated spec to your actual heaviest load in the position you'll lift it.
Also verify: turning radius (tight yards need short wheelbase and precise handling in confined lanes), spreader compatibility with your container sizes, and tire condition (a fresh set runs $8,000–$15,000).
New reach stackers from major manufacturers run roughly $400,000 to $600,000 depending on capacity and options. Used units vary widely based on hours, condition, and documentation.
A used machine can save you $150,000 or more upfront. But hours and maintenance history matter more than model year. A 2018 unit with 8,000 hours and a full service binder is a better buy than a 2020 unit with 6,000 hours and no paperwork.
What to verify before you pay:
Engine hours — the real odometer of heavy equipment
Boom and hydraulic condition — leaks, wear on the telescoping sections, cylinder play
Spreader function — twist-locks engage and release cleanly, rotation is smooth
Service records — named intervals, replaced components, dealer stamps
Don't accept "runs great" as a condition claim. Ask for the hour reading, the last service date, and the chance to run it under load yourself. A seller who won't let you test-lift is hiding something.
Buy a reach stacker if you run an intermodal yard, inland container depot, rail terminal, or port handling roughly 50 to a few hundred containers a day and need to move mixed sizes across multiple stack rows.
Skip it if your operation only handles front-row containers on a wide flat yard—a container forklift costs less and does that job. Skip it too if you're a mega-port moving thousands daily—a gantry system pays back its capital cost through sheer density.
The reach stacker is the flexible middle. It's the right call when your throughput is real but your yard layout changes, your container sizes vary, or you can't justify fixed rail infrastructure.
A reach stacker earns its keep in medium-throughput yards that need speed and flexibility more than raw density, and maximum uptime depends not only on matching specs but also on trained operators and disciplined maintenance. Match the derated lift capacity to your heaviest load in the row you'll actually lift it. Operators should be trained and certified for machines over 3 tons. Verify engine hours and service records before model year. Check safety-critical systems such as load moment limiters and twistlock indicators. And never skip the test-lift. No one should ever walk under a lifted container.
Know your specs, then shop. Browse listings.
What is the maximum stacking height of a reach stacker?
Most reach stackers stack containers up to six high in the first row. Stacking height drops as reach depth increases, since the machine's stability limits extended lifts. Check the manufacturer's load chart for exact figures at each row.
How many containers deep can a reach stacker reach?
A reach stacker typically reaches up to three rows deep with its telescoping boom. Lift capacity decreases with each additional row, so a machine rated for 45 tons in row one may handle significantly less in row three.
What lift capacity do I need for loaded containers?
A fully loaded 40-foot container can weigh up to 30 metric tons or more. Choose a reach stacker rated for at least 40–45 tons in the first row to handle loaded containers safely, and confirm the derated capacity for the rows you'll actually stack.
Is a used reach stacker worth buying?
Yes, if the hours and service history check out. A used reach stacker can save $150,000 or more over new. But verify engine hours, boom and hydraulic condition, spreader function, and documented maintenance before you commit. Skip any unit the seller won't let you test-lift.
How much does it cost to maintain a reach stacker?
Ongoing costs include diesel fuel, hydraulic service, tire replacement ($8,000–$15,000 per set), and boom and spreader maintenance. Budget for scheduled service at named engine-hour intervals to protect the machine's resale value and uptime.