Custom Lift and Replacement Chain on a 1 Ton Chain Hoist

A maintenance planner at a Midwest distribution center has a requisition on the desk for a 1 ton hand chain hoist, and the unit has to pick a fixture off a mezzanine handrail at a height the stocked offering does not quite reach. The CB-series owner's manual is open to the ordering note. Two answers settle the requisition before it goes out: the lift length is chosen when the hoist is ordered, and the load chain is never lengthened by adding links in the shop.

Everything below comes from that manual and applies to the CB series hand chain hoists it covers, so treat it as model-scoped rather than as a rule for every chain hoist on the market. A different make or series will carry its own ordering note, its own chain specification and its own inspection table.

What Custom Lift Length Means on a CB Hoist

Custom lift is the length of load chain supplied with the hoist. On this series it is a line on the order rather than a kit fitted afterward: the manual's note says any lift of chain is available on request and tells the buyer to specify the length of chain desired when ordering. That one sentence places the decision before the hoist ships. The note reads as an ordering instruction rather than a maintenance procedure, which means the decision point sits in the purchase order and not in the receiving bay with chain already on the floor. The consequence for a warehouse is dull and worth respecting: the length the crew will work with for years gets typed into a requisition once, by whoever happens to be holding it that week.

Anyone who has ordered a stocked lift and found it short of the pick height it was bought for knows the reflex is to solve it at the load, with a shackle, a sling or a length of extra chain. On this series that reflex runs straight into the manual's prohibition on lengthening, which is where the next question starts.

How a Factory-Ordered Lift Differs From Adding Links

Length is decided before shipment. Because the chain is heat treated as a supplied assembly, a joint added in the field introduces a component that never went through that treatment, and since load passes through every link in series, the weakest joint sets the strength of the whole run. The manual states the consequence flatly: never attempt to lengthen the chain by attaching additional chain links to it or by any other means.

A field splice also lands outside the inspection routine the manual describes, where wear is judged on links that were formed and treated together and where the discard limits are written for chain that arrived in one piece. Spliced chain has no such table. The route the same page points to instead is the order: name the length at purchase, and the chain arrives as a single treated run that matches the sheave it will ride on.

What Chain Qualifies as a Replacement and Why

The replacement question has a shorter answer than most buyers expect. The manual ties the hoist to authentic chain for that model and gives the reason in the same breath: because the chains are specially heat treated, only authentic chain should be used on the hoist. Heat treatment is not decoration on a chain. It is what governs how the links carry load and how they wear against the load sheave, and it is applied to the chain as supplied, which means a replacement is being matched to a process and not only to a diameter.

A size-matched generic chain can look right on the bench and still be the wrong part, and nothing in a receiving bay separates the two. That is why the practical move at the desk is a part number for the model rather than a caliper reading: the chain is bought as a matched component, and a near-match is a decision nobody can verify once the hoist is back in service. What this describes is the manufacturer's requirement for the CB series; it makes no claim about measuring or testing any third-party chain, and a buyer sourcing elsewhere is making a different decision than the one the manual sets out.

Checking Chain Wear Before You Order a Replacement

The visual list in the manual is concrete. Surfaces should be free of gouges, nicks, dents, weld splatter and corrosion. Links should not be deformed and should show no signs of abrasion. Where links bear on one another, significant wear means replace. Each of those is a pass-or-replace condition on the load-bearing surface, not a comment on how the chain looks overall.

A second step is measurement: pitch and wire diameter checked against discard values in the manual's own table, with pitch not to exceed its limit and wire diameter not to fall below its limit. Those values are not reproduced here, because the published table has to be read against the specific model row and a figure lifted from the wrong column is worse than no figure at all. Read the limit off the row for your model, or ask the supplier for the confirmed sheet before anyone orders.

Because the load sheave and the wear limits are built around one chain geometry, a measurement means something only when it is compared against that model's own table. The same reading set beside another capacity's row tells you nothing useful about this hoist.

Lubrication and Reeving Checks That Come First

Two conditions are worth clearing before a replacement is ordered. Every link's entire surface should carry lubricant and be free of dirt and grime, and the chain should not emit a cracking noise while it lifts a load. The chain should also be reeved properly through the load sheave, and on multiple-fall units it should be installed without twists.

Both items are maintenance, and both can make a sound hoist feel like a failing one. Because a dry chain wears against the sheave and a mis-reeved or twisted chain carries load unevenly, the grinding an operator reports often traces back to lubrication or reeving long before it traces to metal loss. Ordering chain to cure a lubrication problem spends money and leaves the real fault in place, which is why these checks sit ahead of the wear decision rather than behind it.

What to Put on a Custom Lift Order

A custom lift requisition carries four things: the lift length wanted, stated at the time of ordering exactly as the manual's note instructs; the model that length applies to; the authentic chain part number for that model, so a later replacement is a lookup rather than a search; and a question to the supplier about what the extra length does to the weight of the unit.

Extra lift is not weightless. The specification table ties additional feet of lift to additional weight per foot, and it does so row by row, which matters when the hoist hangs from a beam or a trolley with limits of its own. The per-foot values are not quoted here, because the table's column layout has to be read against the correct row before any number can be trusted.

Suppose a planner is sizing a hoist to a mezzanine handrail at a fixed pick height. Four questions to the supplier settle the order: the confirmed lift length on the acknowledgement, the model-specific chain part number, which table row applies to that model, and the weight the extra length adds. None of them requires the buyer to arrive with a number already in hand.

Who Should Not Order a Custom Lift

Two buyers should skip this. If the pick height is already covered by a stocked standard lift, a special length buys nothing the job needed. If the shop intends to add links to reach a height, or to fit generic chain when the old chain comes off, the manual closes that door for this series outright, and an order is the wrong instrument for the problem.

The buyer this fits is the one ordering against a fixed pick height, who will keep an OEM parts path for the chain that comes later, and who would rather settle the length on the requisition than discover the gap at the handrail with a load on the hook.