Demag Cranes Explained: FAQs on Specs, Catalogs, and Urgent Delivery

Demag cranes are a big investment. If you're reading this, you probably have a specific question about specifications, catalogs, or lead times—or maybe you're in the middle of a "panic-buy". I'm a sales engineer at a crane and hoist distributor, and in the last 5 years I've coordinated over 120 emergency equipment orders, including same-day hoist replacements for steel plants and 48-hour crawler crane locates for contractors under penalty clauses. This FAQ is about the things I actually get asked (and a few I wish buyers would ask).

1. Where can I get the official Demag crawler crane catalog and hoist specs?

The official source is the Demag Cranes & Components product portal. Most distributors, including us, carry the latest PDF catalog. But here's the catch: a catalog is a reference, not a decision-making tool. It lists models, capacities, and dimensions, but it doesn't tell you whether that specific crane fits your job context. Start with the current official PDF (made after 2024, honestly), and then talk to a supplier who can pull the exact duty charts and load loop diagrams. For hoists, look for FEM/ISO 9.511 duty class data, not just lifting capacity in tons. "Ton crane supplier" is a nice search term, but the real work is matching the crane's hook height and duty rating to your process.

2. How fast can I actually get a Demag crane for sale if I have an urgent project?

That depends on whether you need a standard hoist, a bridge crane, or a crawler crane. Standard Demag hoists are sometimes available from stock; I've seen a 10-ton hoist ship out same-day when a client's production line was down. New overhead cranes? Realistically 12-20 weeks, depending on configuration. Crawler cranes are rarer. If you need a specific model on a tight deadline, expect to pay a premium for transport and priority scheduling. For example, in March 2024, a contractor called me on a Tuesday morning needing a 200-ton crawler crane for the following Monday. The unit was found in another state, transport cost $18,000 extra, but the alternative was a $250,000 penalty clause. So yes, it's possible, but "possible" has a number attached to it. As of early 2026, we're seeing current delivery times for new Demag units expand due to component supply. Verify with your distributor before you promise your client a date.

3. What tonnage crane do I need? How do I calculate that?

The basic formula is: actual load + rigging + a safety margin (typically 25% above total load). For a lift of 20 tons, that means a crane rated for at least 25 tons—unless you're using a crawler crane with the boom at a certain angle; then you need a load chart. You don't estimate this. I'm serious. For crawler cranes, you're working with a load chart that follows ASME B30.5; for overhead cranes, CMAA #70 defines the service classes. If your application is lifting components in a production line, you also need to consider the duty cycle (are you lifting every 5 minutes or twice a day?). This is where the "ton crane supplier" question often goes wrong: you can't just pick the next size up. I remember we had a client who wanted to save $4,000 by dropping from a 5-ton hoist to a 3.2-ton hoist, despite a load chart showing 2.8 tons max. The upside was $4,000. The risk was the hoist running constantly at nearly rated load. After six months, the motor started overheating. The expected value said use a proper margin; the downside felt like... well, it felt like a production stop. Based on that experience, our policy now is: calculate, then verify with the manufacturer's load chart.

4. What should I check in a hoist specification guide?

The guide should include lifting capacity, lift height, lifting speed, motor power, duty class (again, FEM/ISO 9.511), headroom dimensions, and wire rope vs. chain type. But in my experience, the most overlooked line is the "duty cycle" not the "tons." A 2-ton hoist in Class D is not the same as a 2-ton hoist in Class A. If you're running shifts, you need at least Class C or D (maybe EM2 per FEM). Also, check the control voltage and hook path. I once saw a new hoist ordered with a fixed lug suspension when the spec demanded a motor trolley. (Note to self: always confirm the suspension type before issuing a PO.) This is the kind of mistake that turns a 4-week lead time into 9 weeks when you have to return it.

5. Are Demag cranes always the right choice?

Honestly? No. If you need a simple work-station crane for a garage, you can probably go with a lower-cost brand. If you're looking for a crawler crane to do one specific lift and then you'll never use it again, renting may make more sense than buying. Demag is a solid choice when you need reliability, international service support, and genuine OEM parts availability over the long term. The brand heritage is real, but it comes with a premium. I recommend Demag for process-critical applications where downtime is more expensive than the crane. For 80% of industrial lifting applications, it's a great fit. For the other 20%—light, intermittent, low-cost operations—you might be paying for capacity you don't use. That's not a criticism; it's just a matchmaking issue.

6. How can I confirm that a Demag crane or hoist is genuine OEM?

Every Demag unit has a serial number and a nameplate. You can check with Demag Cranes & Components directly, or through an authorized distributor. You should also ask for the original CE/OSHA documentation when you buy a used unit. The surprise isn't that counterfeit parts exist; it's how often they appear in "replacement" parts kits. We've had clients save 30% on aftermarket brake pads only to find the hoist's braking distance doubled. Not worth it. For used Demag cranes, make sure the load chart and parts manual match the serial number. Some resellers mix up documentation. If the serial number doesn't match, the crane's certified capacity might not be valid.

7. What's one question buyers almost never ask?

"What's your spare parts response time five years from now?" Seriously. During a crane sale, everyone focuses on capacity, price, and delivery. The nightmare scenario is a fault in the hoist motor on a Friday night and a production line standing still until Tuesday. Ask your supplier for their parts availability commitment. Do they stock Demag OEM parts locally? Can they guarantee a replacement contactor within 48 hours? Does the warranty cover travel time for service? I've been on the customer side of that, and the cost of lost production can easily dwarf the crane's price. Actually, that's the real insight: the cheapest crane isn't the one with the lowest invoice, it's the one with the lowest total downtime cost. So make sure your supplier can answer that question.